Fatal error: Uncaught Error: Interface 'Maatwebsite\Excel\Concerns\ToArray' not found in /home/vtsnised/public_html/anketa2.0/app/Imports/DepartmentSubjectsImport.php:11 Stack trace: #0 {main} thrown in /home/vtsnised/public_html/anketa2.0/app/Imports/DepartmentSubjectsImport.php on line 11