Blank screen after selecting K2 category

Hi,
When i am creating a new article (item) in k2 component i get a blank screen after i want to chose a category. It does not matter which category I select, it happenswith every category, from within different browsers (IE9, IE10, FF, Chrome). It has used to worked fine. The plugin is also working fine, only this blank screen is the problem.

I'm using k2 v2.6.8 and joomla! v.3.2.3

Hi

Please set error showing level to maximum in global joomla configuration. This should force the error causing the blank screen to show. Let me know what this error is.

I set error reporting to maximum .... but all those masseges are "black magick" for me. Please look at my site raportrolny.com and help me with this problem.

Hi

All I can see are "strict standard" messages, this is nothing to worry about. You need to tell me what error is visible while blank page appears. Please just copy it here.

I record a short video ... i hope it will help you solve my problem - https://www.youtube.com/watch?v=KrX5Jdw ... e=youtu.be

Or maybe i should give you (via e-mail) a login and password to my website?

Hi

Yes, please send me an access to joomla panel and ftp so I'll try to fix it.

hi. I just send you an e-mail with acces informations

great! site works fine. How you did it?

Hi

I'm afraid it wasn't me. I got sick and was not able to work till today. So it has to be something You've done Or it was a time offset problem. It happens when database has a different timestamp than server with joomla installation. Please check if new articles are disaplyed by NSP module. If not than try to play with Time Offset option in module settings.