Here are the two other posts topics. I am not sure what was done, but it worked for a little bit. We are also having issues when we are on the news stream of posting. Sometimes it lets you post, but most of the time it doesn't let my client post updates.
I need your cpanel/phpmyadmin access detail. If can't provide that. could you please install Akeeba backup?
I want make local copy for your site. Because your site is a live site, I cant do deep debugging. because can damaging your site in temporary times.
We have not received any response back from you in over 7 days, and would like to know if you consider this issue to be resolved. If you have any further questions, simply reply to this post.