CD key error + bug

Version is 1.28.4
Here is a video whee i am trying to log in battlenet and to run frozen throne.
As you can see instead of TFT, ROC runs. I can't even start TFT from the icon next to single player.
Battlenet says the CD key is disabled. I tried a different key with TFT key changer and ROC changer but not result.
Lastly, when the game closes error appears saying the CD is not in the CD-ROM

More: WEX Editor cannot run because of theCD key I suppose

Can somebody please help? What must I do?

EDIT: The problem with switching game is ixed when i start with administrator rights
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