Unable to edit Forms. " Uh oh! I think I broke it. If I do it again, please report me to the system administrator! #### 500 Internal Server Error"
Please advice how to resolve.
Upon checking the log, this errors shows up:
[2021-10-04 09:02:46] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\UnexpectedTypeException: “Expected argument of type “null or string”, “boolean” given” at /home/abc/public_html/www/mautic/vendor/symfony/form/Extension/Core/DataMapper/RadioListMapper.php line 49 {“exception”:"[object] (Symfony\Component\Form\Exception\UnexpectedTypeException(code: 0): Expected argument of type “null or string”, “boolean” given at /home/abc/public_html/www/mautic/vendor/symfony/form/Extension/Core/DataMapper/RadioListMapper.php:49)"}