@marjons that should – hopefully – not be the solution. We all use different themes (my theme is Odrin) and I don’t think, every theme-builde will offer support for this 🙁
I have the same problem with my contact form since activating re-captcha this morning! Could that be the problem? I could not find a solution either and would be happy to be informed when the issue is solved.
Thank you very much!