Fatal error: Uncaught Error: Class 'Zend\Server\AbstractServer' not found in /home/app/htdocs/ninja/vendor/zendframework/zend-json/src/Server/Server.php:19
Stack trace:
#0 {main}
thrown in /home/app/htdocs/ninja/vendor/zendframework/zend-json/src/Server/Server.php on line 19