Thanks again Markoz,

I did tried to reinstall it, but this still did not helped to solve the problem. Also updated to latest version. However, something is weird with few things on this plane. I am using FSUIP to assign light switches, gear, flaps and etc. But only some of them work. Lets say flaps are always controllable, gear sometimes  works sometimes not, and I can not toggle landing lights at all. I've tried loading then 200 and everything works fine with it. Returning back to 300 and same problem still there. I don't think it's a problem with fsuipc.
With reinstalling liveries was no problems  8-)
I guess I'll just wait until I will have better internet and try reinstall everything from scratch again.