Can't find digital editions in library in order to drag activation.dat file to trash

Can't download e-books to digital editions anymore due to error getting license.  I was following the 6 steps to de-authorize; msg comes up "unable to erase authorization.  Please try later" but have tried numerous times with no success.  I then went to Step 6 to see if I could just drag the activation.dat file to trash; however, there is no digital edition folder in library/application support/adobe.   Any suggestions as to what to do next so I can download my e-books from library once again..