When I try to open an ebup-file i get the error message E_ACT_NOT_READY. When I try to deauthorizase I get the answer "Unable to Erase Authrization.Please try after some time". When I go to the folder Library/Application/Support/Adobe/Digital Editions there is no activation data file there. So now I can't use my Adlibris Letto e-book reader
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