If everyone else can login but you can't then it is then something else is causing the issue.
It can't be the files in case you downloaded them from here http://forum.pandawow.ru/showthread.php?t=46675&langid=1
Since everyone else is using them and they work fine.
Therefore, according to your picture, you are either typing the username or the PW wrong.
Have you tried closing and re opening the game couple of times and deleting the Cache from the folder ?
Or have you checked if the client which you are using 32 / 64 bit is compatible with your PC?
Also, keep in your mind that you have made your thread at the 5 AM, don't expect fast replies at that time, since people have to sleep ;)