Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/app/htdocs/v2.2.3/vendor/robthree/twofactorauth/tests/TwoFactorAuthTest.php:9
Stack trace:
#0 {main}
thrown in /home/app/htdocs/v2.2.3/vendor/robthree/twofactorauth/tests/TwoFactorAuthTest.php on line 9