Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\xampp\htdocs\smsgateway\database\migrations\2026_07_18_000100_create_smpp_inbound_envelopes_table.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\smsgateway\database\migrations\2026_07_18_000100_create_smpp_inbound_envelopes_table.php on line 8