Hi there,

Thanks for contacting us. Sorry for the inconvenience. Will you please provide me the Joomla administrator access to check the issue? I will check & get back to you soon. 

Note: Although I have shared your post with our developer team.

-Thanks

OK

Please create an staging site and set PHP 8. Cause, your site is live and should't work live site.

Process

https://drive.google.com/file/d/1ms8hPQfM3xfF4XUO0W4pUZAhzGUqxBwD/view

1. Create a subdomain from your cPanel
2. Export your existing site Database from PHPMyAdmin
3. Create a new Database
4. Import the existing Database to the new Database
5. Update configuration.php file
6. Go to the administrator of the staging site

After complete staging site, install the Helix Ultimate & Page Builder then change your PHP version for staging site.

-Thanks

OK

Please check now. Thanks

OK thx

What du you do on, for the futur same problem ?

Thx

Before update follow this instructions.

https://drive.google.com/file/d/1ms8hPQfM3xfF4XUO0W4pUZAhzGUqxBwD/view

1. Create a subdomain from your cPanel
2. Export your existing site Database from PHPMyAdmin
3. Create a new Database
4. Import the existing Database to the new Database
5. Update configuration.php file
6. Go to the administrator of the staging site then update & check latest update.