Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Support\Arrayable" not found in /home/aplikasiposinfo/public_html/ppdb.samarinda.app/vendor/maatwebsite/excel/src/Validators/Failure.php:8 Stack trace: #0 {main} thrown in /home/aplikasiposinfo/public_html/ppdb.samarinda.app/vendor/maatwebsite/excel/src/Validators/Failure.php on line 8