Fatal error: Uncaught Error: Interface 'JsonSchema\UriResolverInterface' not found in /mnt/volume_lon1_01/backend/admin/vendor/justinrainbow/json-schema/src/JsonSchema/Uri/UriResolver.php:20 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/admin/vendor/justinrainbow/json-schema/src/JsonSchema/Uri/UriResolver.php on line 20