Hello,
I had a problem in my site that I used k2 in. it was a site built with Joomla! 1.5.
I thought it will be better to move to Joomla! 2.5 and it may solve my problem.

So, I built a new site with Joomla! 2.5.8, and Yoo Spark template (from yootheme.com), then I moved k2 items to the new site using this method:
getk2.org/documentation/tips-a-tricks/item/311-manually-migrating-k2-content-from-joomla-15-to-17

but the problem still exist !!

I can not add or edit k2 items, once I select a category and write some text, I can not hit (Save) button.

Please try to add an item here:
4hoda.com/main/index.php/add-new-article.html

Username: demo
Password: demo

Please help me :(
Kind Regards,
Fares

Please help me
It's a big issue, I did not add any item for a long time :S

your login shows a relatively blank screen with one word at the top left.
the demo user doesnt have access to your back end administrator
I would first disable the k2 login module (if thats what your using) and enable the k2 user module to see if that helps.
please include your j and k2 version numbers

Hello,
I'm using Joomla 2.5.8, and the ltest version of k2 2.6.2

Can I send you admin data to give this a try?!
I can not solve this problem myself

Kind Regards,
Fares

see my profile

I can not send you PM !!
there is not PM button

My email is in my profile as well as a link to a form submission

Sent

You should unpublish the joomla login module, and publish the k2_user module to a position that is valid for your template

I published the k2 user module as you said, please try to add an item now, you will see a strange thing:
When I hit (Save) button, the browser ask me if I want to exit the page !!

Please try to add some item,
Kind Regards,
Fares