I've carried my camera to the service , an engineer there have cleaned it. Everything seems to work properly. One more thing I have to do is buying a lens cleaning set ... So , that means I'm able to make photos again. :)
Jeez! Right now I'm unable to provide more photos ... Focusing Screen is dirty , and I can't clean it myself ... Gonna try to clean it somehow , although I think I'll have to give it to Photo - service ... Gah :(