diff --git a/core/Controller/TaskProcessingApiController.php b/core/Controller/TaskProcessingApiController.php
index 00551b5d3e27c..9783299bccb1c 100644
--- a/core/Controller/TaskProcessingApiController.php
+++ b/core/Controller/TaskProcessingApiController.php
@@ -35,14 +35,10 @@
 use OCP\AppFramework\Http\Attribute\UserRateLimit;
 use OCP\AppFramework\Http\DataDownloadResponse;
 use OCP\AppFramework\Http\DataResponse;
-use OCP\Common\Exception\NotFoundException;
 use OCP\Files\File;
-use OCP\Files\GenericFileException;
 use OCP\Files\IRootFolder;
-use OCP\Files\NotPermittedException;
 use OCP\IL10N;
 use OCP\IRequest;
-use OCP\Lock\LockedException;
 use OCP\TaskProcessing\EShapeType;
 use OCP\TaskProcessing\Exception\Exception;
 use OCP\TaskProcessing\Exception\UnauthorizedException;
@@ -164,7 +160,7 @@ public function getTask(int $id): DataResponse {
 			return new DataResponse([
 				'task' => $json,
 			]);
-		} catch (NotFoundException $e) {
+		} catch (\OCP\TaskProcessing\Exception\NotFoundException $e) {
 			return new DataResponse(['message' => $this->l->t('Task not found')], Http::STATUS_NOT_FOUND);
 		} catch (\RuntimeException $e) {
 			return new DataResponse(['message' => $this->l->t('Internal error')], Http::STATUS_INTERNAL_SERVER_ERROR);
@@ -221,8 +217,6 @@ public function listTasksByApp(string $appId, ?string $customId = null): DataRes
 			]);
 		} catch (Exception $e) {
 			return new DataResponse(['message' => $this->l->t('Internal error')], Http::STATUS_INTERNAL_SERVER_ERROR);
-		} catch (\JsonException $e) {
-			return new DataResponse(['message' => $this->l->t('Internal error')], Http::STATUS_INTERNAL_SERVER_ERROR);
 		}
 	}
 
@@ -250,8 +244,6 @@ public function listTasks(?string $taskType, ?string $customId = null): DataResp
 			]);
 		} catch (Exception $e) {
 			return new DataResponse(['message' => $this->l->t('Internal error')], Http::STATUS_INTERNAL_SERVER_ERROR);
-		} catch (\JsonException $e) {
-			return new DataResponse(['message' => $this->l->t('Internal error')], Http::STATUS_INTERNAL_SERVER_ERROR);
 		}
 	}
 
@@ -287,7 +279,7 @@ public function getFileContents(int $taskId, int $fileId): Http\DataDownloadResp
 			return new Http\DataDownloadResponse($node->getContent(), $node->getName(), $node->getMimeType());
 		} catch (\OCP\TaskProcessing\Exception\NotFoundException $e) {
 			return new DataResponse(['message' => $this->l->t('Not found')], Http::STATUS_NOT_FOUND);
-		} catch (GenericFileException|NotPermittedException|LockedException|Exception $e) {
+		} catch (Exception $e) {
 			return new DataResponse(['message' => $this->l->t('Internal error')], Http::STATUS_INTERNAL_SERVER_ERROR);
 		}
 	}