NamelessMC

PHP 7.4.18

When registering, an error comes up where you are supposed to contact the admin. I have searched for the error and have sent in the panel, the registration email again. There came the following error:

What can I do? I need support urgently

PS: I use the version 2.0.0

Sorry, but something went wrong while loading the page. Error details:

Uncaught Error: Call to undefined method Email::formatEmail() in /var/www/html/modules/Core/includes/emails/register.php:23
Stack trace:
#0 /var/www/html/modules/Core/pages/panel/users_edit.php(98): sendRegisterEmail()
#1 /var/www/html/index.php(86): require('/var/www/html/m...')
#2 {main}
  thrown

In Zeile 23