I recently came across an issue on the site that I'm working on. I changed some user fields and added a few and it seemed to work fine. Only I start up my computer today to show my team mates the changes and I get the error:
Call to undefined method CCK_DocumentHTML::setHtml5()
I looked up what was already said about this error on the site, and came across a post that said that i needed to update my plugins. I installed the upgrader but it says that no extentions need updating.
The problem persists in both the front- and backend. If you want to look at it yourself you could go to our site: vertrouwdhalal.nl and click on nog geen account? (which translates to make a new user).