Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Model" not found in /home/ketabetamaddon/public_html/sharjino.ketabetamaddon.ir/app/Models/ConversationState.php:7 Stack trace: #0 {main} thrown in /home/ketabetamaddon/public_html/sharjino.ketabetamaddon.ir/app/Models/ConversationState.php on line 7