Your software
My PHP version is : 7.3.20
My MySQL/MariaDB version is: 10.5
These errors are showing in the Mautic log :
mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Debug\Exception\FatalErrorException: “Compile Error: Cannot declare class Mautic\ApiBundle\Form\Type\ConfigType, because the name is already in use” at /path/public_html/em/app/bundles/EmailBundle/Form/Type/ConfigType.php line 0 {“exception”:“[object] (Symfony\Component\Debug\Exception\FatalErrorException(code: 0): Compile Error: Cannot declare class Mautic\ApiBundle\Form\Type\ConfigType, because the name is already in use at /path/public_html/em/app/bundles/EmailBundle/Form/Type/ConfigType.php:0)”}
Your problem
My problem is : I am unable to view my configuration page on a new install.
Steps I have tried to fix the problem : Post here.