Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Database\Eloquent\CastsAttributes" not found in C:\xampp\htdocs\ojs\lib\pkp\classes\job\casts\DatetimeToInt.php:22 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ojs\lib\pkp\classes\job\casts\DatetimeToInt.php on line 22