Error during save in rating form

That’s a really hard one to track down. It basically indicates that the server thinks there was something wrong with the request, but gives no indication what might be wrong.

If it just happens once or twice, and things work otherwise, it could be a transient network glitch. But if it happens more often, there is something wrong.

Make sure there are no unsupported characters in the input. If that is not the problem, it’s always worth disabling other plugins to see if there is a conflict. Also checking anything that has changed since the program last worked correctly.