I've run out of ideas, I looked on every forum and tried almost everything. This is my last hope.
I have a site that I needed to upgrade due to vulnerabilities to the version.
So I went from 5.04.1 to 5.06.08, it worked except that the html modules (all of them) give an error every time I hit save.
Refresh the page and it saves, so no idea why it does that.
The massive failure came when I tried to upgrade it the latest dnn, 6.02.07. The install was successful however, the site failed, only giving a generic stack trace error panel. I tried even restoring the backups and going from each version of dnn on up 06.00.00, then 06.01.05, even 7 just for kicks.
I have not been able to get a stable working version of dnn since. Please any advice would be grateful.