Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/gyannewsoftware/public_html/emarketing1_Acelle/database/migrations/2019_12_27_165404_make_user_agent_in_unsubscribe_logs_table_nullable.php:7 Stack trace: #0 {main} thrown in /home/gyannewsoftware/public_html/emarketing1_Acelle/database/migrations/2019_12_27_165404_make_user_agent_in_unsubscribe_logs_table_nullable.php on line 7