500 Internal Server Error

Hi I update my site to wordpress 6.0 and the villa theme has fail completelly. This is the error that I’m getting. Everytime I try to access one of the emails this is the error. As of 4 days ago it was working propely.

Server Error
500
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator to inform of the time the error occurred and of anything you might have done that may have caused the error. More information about this error may be available in the server error log.
Everytime I try to access any of the thank you pages.

Thank you for your help.
Clara