K2 modules are not working. when i click on the k2 tool, or k2 content, k2 comment or even k2 user in joomla 3.4.3, I only get the title tab. No other tab shows up. I cant edit any of the these modules. I am updated from k2 v2.6.2 to k2 v2.6.9 and still no changes.
When I also goto category, and create a new category, It saves but the category doesnt show up in the list of category.
can someone please help me
click link below to view print screen
imgur.com/LHugU8c 
