Fatal error: Class 'Psr\Log\NullLogger' not found in /var/www/html/dev/spa/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Log/NullLogger.php on line 23

Call Stack:
    0.0005     235152   1. {main}() /var/www/html/dev/spa/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Log/NullLogger.php:0