Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Support\MessageProvider' not found in /home/mattiapa/cloud2.mprnl.fr/owncloud/apps/files_external_dropbox/vendor/illuminate/contracts/Validation/Validator.php:7 Stack trace: #0 {main} thrown in /home/mattiapa/cloud2.mprnl.fr/owncloud/apps/files_external_dropbox/vendor/illuminate/contracts/Validation/Validator.php on line 7