Apologies for the inconvenience.
The issue you're experiencing—Class "NumberFormatter" not found—is caused by the PHP intl extension not being enabled on your server. This extension is required for proper number and currency formatting in templates like Cerlestia and Estate.
Please contact your hosting provider and ask them to enable the PHP intl extension for your current PHP version. Once it's enabled, the issue should be resolved.
If you need further assistance after that, feel free to reach out.