When I edit a post and press the "update" button, a message appears "Please enter the required fields" and the changes are not saved.
Help please.
Please deactivate all other plugins and test it again. It seems some plugin tries to add a new hidden field in wpForo Editor, then it expects data submitted with the hidden field.
A similar issue is mentioned in this topic:
https://wpforo.com/community/how-to-and-troubleshooting-2/please-insert-required-fields/#post-5509
The problem was coming from theme.
I can edit replies but i can not edit topics. It is very strange.
I'm sorry but we can't register to check it. The registration form is not the wpForo form and it's too complicated. Please register some demo User and send login details to support[at]gvectors.com email address.