Fatal error: Uncaught Error: Interface "SebastianBergmann\Timer\Exception" not found in /home/wwwarms/ws.arms-tools.com/websocket-server/vendor/phpunit/php-timer/src/exceptions/NoActiveTimerException.php:14 Stack trace: #0 {main} thrown in /home/wwwarms/ws.arms-tools.com/websocket-server/vendor/phpunit/php-timer/src/exceptions/NoActiveTimerException.php on line 14