Fatal error: Interface 'Illuminate\Database\ConnectionResolverInterface' not found in /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Database/ConnectionResolver.php on line 3

Call Stack:
    0.0003     241000   1. {main}() /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Database/ConnectionResolver.php:0