diff --git a/lib/ACL/ACLManager.php b/lib/ACL/ACLManager.php
index 00055f14a..56c9d8d29 100644
--- a/lib/ACL/ACLManager.php
+++ b/lib/ACL/ACLManager.php
@@ -28,6 +28,7 @@
 use OCP\Constants;
 use OCP\Files\IRootFolder;
 use OCP\IUser;
+use Psr\Log\LoggerInterface;
 
 class ACLManager {
 	private CappedMemoryCache $ruleCache;
@@ -37,6 +38,7 @@ class ACLManager {
 	public function __construct(
 		private RuleManager  $ruleManager,
 		private TrashManager $trashManager,
+		private LoggerInterface $logger,
 		private IUser        $user,
 		callable             $rootFolderProvider,
 		private ?int         $rootStorageId = null,
@@ -117,9 +119,13 @@ private function getRelevantPaths(string $path): array {
 			if ($fromTrashbin && ($path === '__groupfolders/trash')) {
 				/* We are in trash and hit the root folder, continue looking for ACLs on parent folders in original location */
 				$trashItemRow = $this->trashManager->getTrashItemByFileName($groupFolderId, $rootTrashedItemName, $rootTrashedItemDate);
-				$path = dirname('__groupfolders/' . $groupFolderId . '/' . $trashItemRow['original_location']);
 				$fromTrashbin = false;
-				continue;
+				if ($trashItemRow) {
+					$path = dirname('__groupfolders/' . $groupFolderId . '/' . $trashItemRow['original_location']);
+					continue;
+				} else {
+					$this->logger->warning("failed to find trash item for $rootTrashedItemName deleted at $rootTrashedItemDate in folder $groupFolderId", ['app' => 'groupfolders']);
+				}
 			}
 
 			if ($path === '.' || $path === '/') {
diff --git a/lib/ACL/ACLManagerFactory.php b/lib/ACL/ACLManagerFactory.php
index 11ea7ddfb..f9ce57e77 100644
--- a/lib/ACL/ACLManagerFactory.php
+++ b/lib/ACL/ACLManagerFactory.php
@@ -26,6 +26,7 @@
 use OCA\GroupFolders\Trash\TrashManager;
 use OCP\IConfig;
 use OCP\IUser;
+use Psr\Log\LoggerInterface;
 
 class ACLManagerFactory {
 	private $rootFolderProvider;
@@ -34,6 +35,7 @@ public function __construct(
 		private RuleManager $ruleManager,
 		private TrashManager $trashManager,
 		private IConfig $config,
+		private LoggerInterface $logger,
 		callable $rootFolderProvider,
 	) {
 		$this->rootFolderProvider = $rootFolderProvider;
@@ -43,6 +45,7 @@ public function getACLManager(IUser $user, ?int $rootStorageId = null): ACLManag
 		return new ACLManager(
 			$this->ruleManager,
 			$this->trashManager,
+			$this->logger,
 			$user,
 			$this->rootFolderProvider,
 			$rootStorageId,
diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
index 21f961b18..4145888d6 100644
--- a/lib/AppInfo/Application.php
+++ b/lib/AppInfo/Application.php
@@ -229,6 +229,7 @@ public function register(IRegistrationContext $context): void {
 				$c->get(RuleManager::class),
 				$c->get(TrashManager::class),
 				$c->get(IConfig::class),
+				$c->get(LoggerInterface::class),
 				$rootFolderProvider
 			);
 		});
diff --git a/tests/ACL/ACLManagerTest.php b/tests/ACL/ACLManagerTest.php
index 1b0ea88dc..b733fb926 100644
--- a/tests/ACL/ACLManagerTest.php
+++ b/tests/ACL/ACLManagerTest.php
@@ -32,21 +32,18 @@
 use OCP\Files\IRootFolder;
 use OCP\Files\Mount\IMountPoint;
 use OCP\IUser;
+use Psr\Log\LoggerInterface;
 use Test\TestCase;
 
 class ACLManagerTest extends TestCase {
-	/** @var RuleManager */
-	private $ruleManager;
-	/** @var TrashManager */
-	private $trashManager;
-	/** @var IUser */
-	private $user;
-	/** @var ACLManager */
-	private $aclManager;
-	/** @var IUserMapping */
-	private $dummyMapping;
+	private RuleManager $ruleManager;
+	private TrashManager $trashManager;
+	private LoggerInterface $logger;
+	private IUser $user;
+	private ACLManager $aclManager;
+	private IUserMapping $dummyMapping;
 	/** @var Rule[] */
-	private $rules = [];
+	private array $rules = [];
 
 	protected function setUp(): void {
 		parent::setUp();
@@ -54,6 +51,7 @@ protected function setUp(): void {
 		$this->user = $this->createMock(IUser::class);
 		$this->ruleManager = $this->createMock(RuleManager::class);
 		$this->trashManager = $this->createMock(TrashManager::class);
+		$this->logger = $this->createMock(LoggerInterface::class);
 		$this->aclManager = $this->getAclManager();
 		$this->dummyMapping = $this->createMapping('dummy');
 
@@ -77,7 +75,7 @@ private function createMapping(string $id): IUserMapping {
 		return $mapping;
 	}
 
-	private function getAclManager(bool $perUserMerge = false) {
+	private function getAclManager(bool $perUserMerge = false): ACLManager {
 		$rootMountPoint = $this->createMock(IMountPoint::class);
 		$rootMountPoint->method('getNumericStorageId')
 			->willReturn(1);
@@ -85,17 +83,17 @@ private function getAclManager(bool $perUserMerge = false) {
 		$rootFolder->method('getMountPoint')
 			->willReturn($rootMountPoint);
 
-		return new ACLManager($this->ruleManager, $this->trashManager, $this->user, function () use ($rootFolder) {
+		return new ACLManager($this->ruleManager, $this->trashManager, $this->logger, $this->user, function () use ($rootFolder) {
 			return $rootFolder;
 		}, null, $perUserMerge);
 	}
 
-	public function testGetACLPermissionsForPathNoRules() {
+	public function testGetACLPermissionsForPathNoRules(): void {
 		$this->rules = [];
 		$this->assertEquals(Constants::PERMISSION_ALL, $this->aclManager->getACLPermissionsForPath('foo'));
 	}
 
-	public function testGetACLPermissionsForPath() {
+	public function testGetACLPermissionsForPath(): void {
 		$this->rules = [
 			'foo' => [
 				new Rule($this->createMapping('1'), 10, Constants::PERMISSION_READ + Constants::PERMISSION_UPDATE, Constants::PERMISSION_READ), // read only
@@ -121,7 +119,7 @@ public function testGetACLPermissionsForPath() {
 		$this->assertEquals(Constants::PERMISSION_ALL - Constants::PERMISSION_SHARE - Constants::PERMISSION_UPDATE - Constants::PERMISSION_READ, $this->aclManager->getACLPermissionsForPath('foo/blocked2'));
 	}
 
-	public function testGetACLPermissionsForPathInTrashbin() {
+	public function testGetACLPermissionsForPathInTrashbin(): void {
 		$this->rules = [
 			'__groupfolders/1' => [
 				new Rule($this->dummyMapping, 10, Constants::PERMISSION_READ + Constants::PERMISSION_UPDATE, Constants::PERMISSION_READ), // read only
@@ -151,7 +149,7 @@ public function testGetACLPermissionsForPathInTrashbin() {
 
 
 
-	public function testGetACLPermissionsForPathPerUserMerge() {
+	public function testGetACLPermissionsForPathPerUserMerge(): void {
 		$aclManager = $this->getAclManager(true);
 		$this->rules = [
 			'foo' => [