ryanius

Thanks @phonograph using your method, I also temporarily solved this problem.

I was having the same issue, no contact form could be displayed and I was getting the error:

Error Details

An error of type E_ERROR was caused in line 148 of the file /wp-content/plugins/contact-form-7/admin/includes/welcome-panel.php.

Error message: Uncaught ArgumentCountError: 3 arguments are required, 2 given in /wp-content/plugins/contact-form-7/admin/includes/welcome-panel.php:148