xfire corrupt?

[MumboJumbo]

So ive come back from uni and now when i start up xfire it trys to update and says its corrupt. So i uninstall and try and reinstall it but nope thats corrupt too. What's happened here?

 

[AMG]

probably have to redown load xfire. i had that once to my luck it still opened up and worked so I m okay

 

[MumboJumbo]

redownloading doesn't work either.