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index 59ea49d..1098091 100644
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+            "time": "2022-01-02T09:53:40+00:00"
         },
         {
             "name": "symfony/filesystem",
-            "version": "v5.4.3",
+            "version": "v5.4.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "0f0c4bf1840420f4aef3f32044a9dbb24682731b"
+                "reference": "3a4442138d80c9f7b600fb297534ac718b61d37f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/0f0c4bf1840420f4aef3f32044a9dbb24682731b",
-                "reference": "0f0c4bf1840420f4aef3f32044a9dbb24682731b",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/3a4442138d80c9f7b600fb297534ac718b61d37f",
+                "reference": "3a4442138d80c9f7b600fb297534ac718b61d37f",
                 "shasum": ""
             },
             "require": {
@@ -3287,7 +3292,7 @@
             "description": "Provides basic utilities for the filesystem",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/filesystem/tree/v5.4.3"
+                "source": "https://github.com/symfony/filesystem/tree/v5.4.7"
             },
             "funding": [
                 {
@@ -3303,7 +3308,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-01-02T09:53:40+00:00"
+            "time": "2022-04-01T12:33:59+00:00"
         },
         {
             "name": "symfony/finder",
@@ -3439,7 +3444,7 @@
         },
         {
             "name": "symfony/polyfill-ctype",
-            "version": "v1.24.0",
+            "version": "v1.25.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-ctype.git",
@@ -3471,12 +3476,12 @@
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Ctype\\": ""
-                },
                 "files": [
                     "bootstrap.php"
-                ]
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -3501,7 +3506,7 @@
                 "portable"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.24.0"
+                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.25.0"
             },
             "funding": [
                 {
@@ -3521,7 +3526,7 @@
         },
         {
             "name": "symfony/polyfill-intl-grapheme",
-            "version": "v1.24.0",
+            "version": "v1.25.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-intl-grapheme.git",
@@ -3582,7 +3587,7 @@
                 "shim"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-intl-grapheme/tree/v1.24.0"
+                "source": "https://github.com/symfony/polyfill-intl-grapheme/tree/v1.25.0"
             },
             "funding": [
                 {
@@ -3602,7 +3607,7 @@
         },
         {
             "name": "symfony/polyfill-intl-normalizer",
-            "version": "v1.24.0",
+            "version": "v1.25.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-intl-normalizer.git",
@@ -3666,7 +3671,7 @@
                 "shim"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-intl-normalizer/tree/v1.24.0"
+                "source": "https://github.com/symfony/polyfill-intl-normalizer/tree/v1.25.0"
             },
             "funding": [
                 {
@@ -3686,7 +3691,7 @@
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.24.0",
+            "version": "v1.25.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
@@ -3749,7 +3754,7 @@
                 "shim"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.24.0"
+                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.25.0"
             },
             "funding": [
                 {
@@ -3837,7 +3842,7 @@
         },
         {
             "name": "symfony/polyfill-php72",
-            "version": "v1.24.0",
+            "version": "v1.25.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-php72.git",
@@ -3893,7 +3898,7 @@
                 "shim"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-php72/tree/v1.24.0"
+                "source": "https://github.com/symfony/polyfill-php72/tree/v1.25.0"
             },
             "funding": [
                 {
@@ -3913,7 +3918,7 @@
         },
         {
             "name": "symfony/polyfill-php73",
-            "version": "v1.24.0",
+            "version": "v1.25.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-php73.git",
@@ -3972,7 +3977,7 @@
                 "shim"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-php73/tree/v1.24.0"
+                "source": "https://github.com/symfony/polyfill-php73/tree/v1.25.0"
             },
             "funding": [
                 {
@@ -3992,16 +3997,16 @@
         },
         {
             "name": "symfony/polyfill-php80",
-            "version": "v1.24.0",
+            "version": "v1.25.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-php80.git",
-                "reference": "57b712b08eddb97c762a8caa32c84e037892d2e9"
+                "reference": "4407588e0d3f1f52efb65fbe92babe41f37fe50c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-php80/zipball/57b712b08eddb97c762a8caa32c84e037892d2e9",
-                "reference": "57b712b08eddb97c762a8caa32c84e037892d2e9",
+                "url": "https://api.github.com/repos/symfony/polyfill-php80/zipball/4407588e0d3f1f52efb65fbe92babe41f37fe50c",
+                "reference": "4407588e0d3f1f52efb65fbe92babe41f37fe50c",
                 "shasum": ""
             },
             "require": {
@@ -4055,7 +4060,7 @@
                 "shim"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-php80/tree/v1.24.0"
+                "source": "https://github.com/symfony/polyfill-php80/tree/v1.25.0"
             },
             "funding": [
                 {
@@ -4071,20 +4076,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-09-13T13:58:33+00:00"
+            "time": "2022-03-04T08:16:47+00:00"
         },
         {
             "name": "symfony/process",
-            "version": "v5.4.3",
+            "version": "v5.4.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",
-                "reference": "553f50487389a977eb31cf6b37faae56da00f753"
+                "reference": "38a44b2517b470a436e1c944bf9b9ba3961137fb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/process/zipball/553f50487389a977eb31cf6b37faae56da00f753",
-                "reference": "553f50487389a977eb31cf6b37faae56da00f753",
+                "url": "https://api.github.com/repos/symfony/process/zipball/38a44b2517b470a436e1c944bf9b9ba3961137fb",
+                "reference": "38a44b2517b470a436e1c944bf9b9ba3961137fb",
                 "shasum": ""
             },
             "require": {
@@ -4117,7 +4122,7 @@
             "description": "Executes commands in sub-processes",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/process/tree/v5.4.3"
+                "source": "https://github.com/symfony/process/tree/v5.4.7"
             },
             "funding": [
                 {
@@ -4133,26 +4138,26 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-01-26T16:28:35+00:00"
+            "time": "2022-03-18T16:18:52+00:00"
         },
         {
             "name": "symfony/service-contracts",
-            "version": "v2.5.0",
+            "version": "v2.5.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/service-contracts.git",
-                "reference": "1ab11b933cd6bc5464b08e81e2c5b07dec58b0fc"
+                "reference": "24d9dc654b83e91aa59f9d167b131bc3b5bea24c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/service-contracts/zipball/1ab11b933cd6bc5464b08e81e2c5b07dec58b0fc",
-                "reference": "1ab11b933cd6bc5464b08e81e2c5b07dec58b0fc",
+                "url": "https://api.github.com/repos/symfony/service-contracts/zipball/24d9dc654b83e91aa59f9d167b131bc3b5bea24c",
+                "reference": "24d9dc654b83e91aa59f9d167b131bc3b5bea24c",
                 "shasum": ""
             },
             "require": {
                 "php": ">=7.2.5",
                 "psr/container": "^1.1",
-                "symfony/deprecation-contracts": "^2.1"
+                "symfony/deprecation-contracts": "^2.1|^3"
             },
             "conflict": {
                 "ext-psr": "<1.1|>=2"
@@ -4200,7 +4205,7 @@
                 "standards"
             ],
             "support": {
-                "source": "https://github.com/symfony/service-contracts/tree/v2.5.0"
+                "source": "https://github.com/symfony/service-contracts/tree/v2.5.1"
             },
             "funding": [
                 {
@@ -4216,20 +4221,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-11-04T16:48:04+00:00"
+            "time": "2022-03-13T20:07:29+00:00"
         },
         {
             "name": "symfony/stopwatch",
-            "version": "v5.4.3",
+            "version": "v5.4.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/stopwatch.git",
-                "reference": "395220730edceb6bd745236ccb5c9125c748f779"
+                "reference": "4d04b5c24f3c9a1a168a131f6cbe297155bc0d30"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/395220730edceb6bd745236ccb5c9125c748f779",
-                "reference": "395220730edceb6bd745236ccb5c9125c748f779",
+                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/4d04b5c24f3c9a1a168a131f6cbe297155bc0d30",
+                "reference": "4d04b5c24f3c9a1a168a131f6cbe297155bc0d30",
                 "shasum": ""
             },
             "require": {
@@ -4262,7 +4267,7 @@
             "description": "Provides a way to profile code",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/stopwatch/tree/v5.4.3"
+                "source": "https://github.com/symfony/stopwatch/tree/v5.4.5"
             },
             "funding": [
                 {
@@ -4278,7 +4283,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-01-02T09:53:40+00:00"
+            "time": "2022-02-18T16:06:09+00:00"
         },
         {
             "name": "symfony/string",
@@ -4313,12 +4318,12 @@
             },
             "type": "library",
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Component\\String\\": ""
-                },
                 "files": [
                     "Resources/functions.php"
                 ],
+                "psr-4": {
+                    "Symfony\\Component\\String\\": ""
+                },
                 "exclude-from-classmap": [
                     "/Tests/"
                 ]
@@ -4489,5 +4494,5 @@
     "platform-overrides": {
         "php": "7.2.5"
     },
-    "plugin-api-version": "2.2.0"
+    "plugin-api-version": "2.3.0"
 }
diff --git a/lib/Db/MatrixTicket.php b/lib/Db/MatrixTicket.php
index d4869f7..b065c0f 100644
--- a/lib/Db/MatrixTicket.php
+++ b/lib/Db/MatrixTicket.php
@@ -7,8 +7,8 @@ use OCP\AppFramework\Db\Entity;
 
 class MatrixTicket extends Entity implements JsonSerializable
 {
-	protected $matrixRoom;
-	protected $matrixAssistedUser; // The ID of the person who created the Ticked. Usually the person who needs help.
+	protected $matrixControlRoom;
+	protected $matrixAssistedUser; // The ID of the person who created the ticket. Usually the person who needs help.
 	protected $matrixHelperUser;
 	protected $status;
 	protected $version;
@@ -17,7 +17,7 @@ class MatrixTicket extends Entity implements JsonSerializable
 	{
 		return [
 			'id' => $this->id,
-			'matrixRoom' => $this->matrixRoom,
+			'matrixControlRoom' => $this->matrixControlRoom,
 			'matrixAssistedUser' => $this->matrixAssistedUser,
 			'matrixHelperUser' => $this->matrixHelperUser,
 			'status' => $this->status,
diff --git a/lib/Migration/Version000000Date20210918151800.php b/lib/Migration/Version000000Date20210918151800.php
index 1516f65..fe154af 100644
--- a/lib/Migration/Version000000Date20210918151800.php
+++ b/lib/Migration/Version000000Date20210918151800.php
@@ -27,20 +27,20 @@ class Version000000Date20210918151800 extends SimpleMigrationStep {
 				'autoincrement' => true,
 				'notnull' => true,
 			]);
-			$table->addColumn('matrix_room', 'string', [
+			$table->addColumn('matrix_control_room', 'string', [
 				'notnull' => true,
 				'length' => 200,
 			]);
 			$table->addColumn('matrix_assisted_user', 'string', [
-                'notnull' => true,
-                'length' => 200,
-            ]);
+				'notnull' => true,
+				'length' => 200,
+			]);
 			$table->addColumn('matrix_helper_user', 'string', [
-                'notnull' => false,
-                'length' => 200,
-            ]);
-            // could be optimized by having a "localUser" with foreign key to users.id,
-            // but that would create consistency issues
+				'notnull' => false,
+				'length' => 200,
+				// could be optimized by having a "localUser" with foreign key to users.id,
+				// but that could create consistency issues
+			]);
 
 			$table->addColumn('status', 'string', [
 				'notnull' => true,
@@ -51,8 +51,8 @@ class Version000000Date20210918151800 extends SimpleMigrationStep {
 			]);
 
 			$table->setPrimaryKey(['id']);
-			$table->addUniqueConstraint(['matrix_room'], 'upschooling_mx_room_id_uniq');
-			$table->addIndex(['matrix_room'], 'upschooling_mx_room_id_idx');
+			$table->addUniqueConstraint(['matrix_control_room'], 'upschooling_mx_room_id_uniq');
+			$table->addIndex(['matrix_control_room'], 'upschooling_mx_room_id_idx');
 		}
 
         if (!$schema->hasTable('upschooling_users')) {
diff --git a/lib/Service/TicketService.php b/lib/Service/TicketService.php
index c241084..d1cc014 100644
--- a/lib/Service/TicketService.php
+++ b/lib/Service/TicketService.php
@@ -75,7 +75,7 @@ class TicketService {
 			"version" => "1",
 		));
 		$ticket = new MatrixTicket();
-		$ticket->setMatrixRoom($roomId);
+		$ticket->setMatrixControlRoom($roomId);
 		$ticket->setMatrixAssistedUser($matrixUser->getMatrixUser());
 		$ticket->setStatus("open");
 		$ticket->setVersion(1);
@@ -85,7 +85,7 @@ class TicketService {
 	public function assign($id, $userId): array{
 		$matrixUser = $this->getOrCreateUser($userId);
 		$ticket = $this->ticketMapper->findTicket($id);
-		$roomID = $ticket->getMatrixRoom();
+		$roomID = $ticket->getMatrixControlRoom();
 		$helperName = $this->userManager->get($userId)->getDisplayName();
 		$this->matrix->setProperty($roomID, "upschooling.ticket", array(
 			"matrixHelperUser" => $matrixUser->getMatrixUser(),
@@ -111,11 +111,11 @@ class TicketService {
 	private function resolveTicket(MatrixTicket $ticket): array
 	{
 		try {
-			$matrixTicketContent = $this->matrix->getProperty($ticket->getMatrixRoom(), "upschooling.ticket");
+			$matrixTicketContent = $this->matrix->getProperty($ticket->getMatrixControlRoom(), "upschooling.ticket");
 			$ticketId = array_get($matrixTicketContent, "id", $ticket->getId());
 			$title = array_get($matrixTicketContent, "title", "Untitled");
 			$description = array_get($matrixTicketContent, "description", "");
-			$lastModified = $this->matrix->getLastEventDate($ticket->getMatrixRoom());
+			$lastModified = $this->matrix->getLastEventDate($ticket->getMatrixControlRoom());
 			$matrixHelperUser = array_get($matrixTicketContent, "matrixHelperUser", "nicht zugewiesen");
 			$matrixHelperName = array_get($matrixTicketContent, "matrixHelperName", $matrixHelperUser);
 			$expirationDate = array_get($matrixTicketContent, "expirationDate", "");