diff --git a/apps/provisioning_api/lib/Controller/AppsController.php b/apps/provisioning_api/lib/Controller/AppsController.php
index b2a3f1a24f9..3f6cff7442a 100644
--- a/apps/provisioning_api/lib/Controller/AppsController.php
+++ b/apps/provisioning_api/lib/Controller/AppsController.php
@@ -8,6 +8,7 @@ declare(strict_types=1);
  */
 namespace OCA\Provisioning_API\Controller;
 
+use OC\App\AppStore\AppNotFoundException;
 use OC\Installer;
 use OC_App;
 use OCP\App\AppPathNotFoundException;
@@ -124,7 +125,7 @@ class AppsController extends OCSController {
 			$this->appManager->enableApp($app);
 		} catch (\InvalidArgumentException $e) {
 			throw new OCSException($e->getMessage(), OCSController::RESPOND_UNAUTHORISED);
-		} catch (AppPathNotFoundException $e) {
+		} catch (AppPathNotFoundException|AppNotFoundException $e) {
 			throw new OCSException('The request app was not found', OCSController::RESPOND_NOT_FOUND);
 		}
 		return new DataResponse();
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index 41bf5d54a33..36f64d970c3 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -1049,6 +1049,7 @@ return array(
     'OC\\AppScriptDependency' => $baseDir . '/lib/private/AppScriptDependency.php',
     'OC\\AppScriptSort' => $baseDir . '/lib/private/AppScriptSort.php',
     'OC\\App\\AppManager' => $baseDir . '/lib/private/App/AppManager.php',
+    'OC\\App\\AppStore\\AppNotFoundException' => $baseDir . '/lib/private/App/AppStore/AppNotFoundException.php',
     'OC\\App\\AppStore\\Bundles\\Bundle' => $baseDir . '/lib/private/App/AppStore/Bundles/Bundle.php',
     'OC\\App\\AppStore\\Bundles\\BundleFetcher' => $baseDir . '/lib/private/App/AppStore/Bundles/BundleFetcher.php',
     'OC\\App\\AppStore\\Bundles\\EducationBundle' => $baseDir . '/lib/private/App/AppStore/Bundles/EducationBundle.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 6fbcd9b9cfa..327366ca889 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -1090,6 +1090,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\AppScriptDependency' => __DIR__ . '/../../..' . '/lib/private/AppScriptDependency.php',
         'OC\\AppScriptSort' => __DIR__ . '/../../..' . '/lib/private/AppScriptSort.php',
         'OC\\App\\AppManager' => __DIR__ . '/../../..' . '/lib/private/App/AppManager.php',
+        'OC\\App\\AppStore\\AppNotFoundException' => __DIR__ . '/../../..' . '/lib/private/App/AppStore/AppNotFoundException.php',
         'OC\\App\\AppStore\\Bundles\\Bundle' => __DIR__ . '/../../..' . '/lib/private/App/AppStore/Bundles/Bundle.php',
         'OC\\App\\AppStore\\Bundles\\BundleFetcher' => __DIR__ . '/../../..' . '/lib/private/App/AppStore/Bundles/BundleFetcher.php',
         'OC\\App\\AppStore\\Bundles\\EducationBundle' => __DIR__ . '/../../..' . '/lib/private/App/AppStore/Bundles/EducationBundle.php',
diff --git a/lib/private/App/AppStore/AppNotFoundException.php b/lib/private/App/AppStore/AppNotFoundException.php
new file mode 100644
index 00000000000..79ceebb4423
--- /dev/null
+++ b/lib/private/App/AppStore/AppNotFoundException.php
@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OC\App\AppStore;
+
+class AppNotFoundException extends \Exception {
+}
diff --git a/lib/private/Installer.php b/lib/private/Installer.php
index 60896ec429d..3bbef3252f4 100644
--- a/lib/private/Installer.php
+++ b/lib/private/Installer.php
@@ -10,6 +10,7 @@ declare(strict_types=1);
 namespace OC;
 
 use Doctrine\DBAL\Exception\TableExistsException;
+use OC\App\AppStore\AppNotFoundException;
 use OC\App\AppStore\Bundles\Bundle;
 use OC\App\AppStore\Fetcher\AppFetcher;
 use OC\AppFramework\Bootstrap\Coordinator;
@@ -174,6 +175,7 @@ class Installer {
 	 * @param string $appId
 	 * @param bool [$allowUnstable]
 	 *
+	 * @throws AppNotFoundException If the app is not found on the appstore
 	 * @throws \Exception If the installation was not successful
 	 */
 	public function downloadApp(string $appId, bool $allowUnstable = false): void {
@@ -356,9 +358,9 @@ class Installer {
 			}
 		}
 
-		throw new \Exception(
+		throw new AppNotFoundException(
 			sprintf(
-				'Could not download app %s',
+				'Could not download app %s, it was not found on the appstore',
 				$appId
 			)
 		);