Fatal error: Interface 'Illuminate\Database\ConnectionInterface' not found in /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 10

Call Stack:
    0.0019     349696   1. {main}() /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Database/Connection.php:0