Fatal error: Uncaught Error: Class "Tests\fixtures\FixtureTestCase" not found in /var/www/ticket-code/vendor/webklex/php-imap/tests/fixtures/UndefinedCharsetHeaderTest.php:22 Stack trace: #0 {main} thrown in /var/www/ticket-code/vendor/webklex/php-imap/tests/fixtures/UndefinedCharsetHeaderTest.php on line 22