Fatal error: Uncaught Error: Interface "Maatwebsite\Excel\Concerns\FromCollection" not found in /home/uconline/public_html/pruebas.uconline.mx/app/Exports/EAD/ExportTeachers.php:9 Stack trace: #0 {main} thrown in /home/uconline/public_html/pruebas.uconline.mx/app/Exports/EAD/ExportTeachers.php on line 9