Error 500 on joomla homepage and on server backend options such as the menu and template manager.

Hi there.

Could you provide us with secret key which is necessary to access your back-end?

Hello I turned off the Two Factor Authentication so you don't need a secret key. If the field is still showing just enter the username and password then enter it will still let you log in with out it. Thanks

Hi there.

To be honest I'm not sure if this's caused by our extension, could you maybe ask your hossting provider to revert your site to some backup before the error starts to happen?

I was thinking I need to start over and install joomla and jomsocial before any other extensions or plug-ins are installed, I'll let you know how it goes. Happy New Year

Sure, and happy new year to you too :)