Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Support\Arrayable' not found in /home/gcpsxdwf/public_html/forum.oandplibrary.org/vendor/flarum/core/src/Extension/Extension.php:45 Stack trace: #0 {main} thrown in /home/gcpsxdwf/public_html/forum.oandplibrary.org/vendor/flarum/core/src/Extension/Extension.php on line 45