Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Database\Eloquent\CastsAttributes" not found in /home/nikxkfvc/public_html/lms10.stnews.top/app/Casts/ConversationGroup.php:8 Stack trace: #0 {main} thrown in /home/nikxkfvc/public_html/lms10.stnews.top/app/Casts/ConversationGroup.php on line 8