Hi,

Sorry about my english. A couple of days ago I installed 3.7.5 Joomla version and after that I installed 2.8 K2 version. After that I can't create or modify any K2 items or categories.
Front-end works fine but when I push any Save, Save & close, Save & new or Close buttons it doesn't works correctly and I was redirect to admin main page, not even K2 items list that was the page I spend.
I reinstalled backup after update Joomla and K2 but (surprise) the problem continues. I've cleaned the browser cache and I've used another browser but problem continues.
Any idea to solve the problem?
Thanks!

I can create or modify commentaries or extra-fields but no items or categories. When I try... main page of Joomla admin

The button actions from the list of items or categories works!. I cant duplicate, publish or unpusblish and change some aspects but just from the list of items or categories.

Are you using any 3rd party K2 extensions?
Furthermore are you getting any JS errors in your console tab?

Hi.

I've tried to disabled them but error go on.

In JS console no errors but many "violations".

imgur.com/a/oSwx4

In error_log file in administrator carpet appears many PHP warning like "ini_set() has been disabled for security reasons in..."

Is it a clue to resolve?

Are you using any 3rd party K2 extensions?
Furthermore you need to contact your hosting provider (or add a custom php.ini file) regarding this warning.

3rd party K2 extensions tested

My hosting provider has change the configuration to avoid ini_set php warnings but the problem with the save or save&close or close operations in items or categories go on.

Any idea?

I cannot re-install 2.8 K2 version... Is it normal?