Hi Konrad,
I replaced it and all K2 in /templates and also, including the k2 module in /module - K2 seems working fine. In addition, I also replace gk modules in /modules, but I lost my images on the front page to header2, portal#3, and portal#2. - I think it overwrites the images there! geez. I think I can fix this one because I have the backup of the images.
I also replaced all of the gk templates files with the new 251 template from gk in /templates with the new financial business 2.5.1 templates. In addition, I replace
After I replaced it, the JDocumentHTML error disappeared on top of Basic Settings and I see this new error (see attached picture for a clearer idea).
It may not be an error because its like css style tables without a label.
Also,