Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Support\Arrayable' not found in /home/vtsnised/public_html/anketa2.0/vendor/maatwebsite/excel/src/Validators/Failure.php:8 Stack trace: #0 {main} thrown in /home/vtsnised/public_html/anketa2.0/vendor/maatwebsite/excel/src/Validators/Failure.php on line 8