Fatal error: Uncaught Error: Class 'React\Tests\EventLoop\TestCase' not found in /home/user1111058/www/dev.companysam.by/vendor/react/event-loop/tests/Timer/TimersTest.php:9 Stack trace: #0 {main} thrown in /home/user1111058/www/dev.companysam.by/vendor/react/event-loop/tests/Timer/TimersTest.php on line 9