Hello,
On the 27th of January I made an update to Joomla 3.4.8
Ever since, it seems that we cannot save anything we cannot save any new article or save changes made to an article.
so far I have tried

• Clearing the Joomla cache from within Joomla
• Clearing browser cache
• verifying that the Text filter is set correctly for users

Now I am at my wits end.
Can someone help me.

Steps to reproduce the issue

Expected result

Actual result

System information (as much as possible)

Additional comments