PHP 8 problems!

My old version of GK Photo doesn't work with PHP 8. So i bought a new version GK Photo ver 4. When i instaled it my page went down 🙁

As I can see that you're using pretty old version of Joomla, you should:

1/Backup your site
2/Install latest version for template and extensions
3/Upgrade latest version of Joomla 3

Then switch to PHP 8.0, our template should work well with PHP 8.0

Regards