Good evening to you all.
I have a problem with my simplepress forum: I can’t add a now topic because the text field is not active. I saw this problem this evening, last topic I wrote is about 4 days ago.
I can write a title, add a file, but I can’t add the main text.
Could you give me some suggest?
Thank you all!
http://www.donneduster.it/forum/
this was working? so what changed? wp update? theme? plugins? other?
worth noting your wp theme is violating standards and loading its own version of jquery instead of the version that comes with wp
<script type=’text/javascript’ src=’http://www.donneduster.it/wp-content/themes/ddd3/jquery.js?ver=4.1.1′></script>
so it may be causing conflicts with the expected wp version… see: https://simple-press.com/documentation/codex/faq/troubleshooting/what-is-this-jquery-conflict/
you can test that by a temp switch to the default wp theme and see if things work better…
Thank you for your reply. Now I’ll verify if your suggest can be useful for me. 
Solution found.
The Simple Press plugin “Editor TinyMCE Rich Text” was guilty.
I’ve disabled it, and all works again.
Thank you Mr Papa for you replies.
Yes, once disabled it, I could write again.
Perhaps I misconfigured it, but I prefer to wait a bit before test it again.
The two most likely causes are (a) a jQuery conflict although that is unlikely as you would probably see other manifestations of that – or (b) and far more likely – you have another plugin that is adding components to the tinyMCE editor (maybe new buttons etc) that has not yet been updated to work correctly with the use of the WP editor on the front end of the web site. Afraid we have come across a few of these in the past where the authors made the false assumption that the editor can only work in the administration side of WP to write blog posts etc.