Fatal error: Uncaught Error: Class "OCP\AppFramework\Middleware" not found in /home/tzuovhm/tzuovhm/apps/app_api/lib/Middleware/ExAppUIL10NMiddleware.php:18 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps/app_api/lib/Middleware/ExAppUIL10NMiddleware.php on line 18