Can't logg on to WoW

Hello, im having problems logging on to the WoW Client i enter my password and the authenticator code then it says that the information i entered is not valid. i can logg on to but not WoW. ive had this problems for some days but then i just removed my authenticator from the acc then adding it again and that usally solved the problem however im also having problems removing the authenticator now it says one of the codes is invalid. Could i get any help please?

FAIL (the browser should render some flash content, not this).

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