I'm not able to authorize my Kobo e reader because I have exceeded my authorization. How do I reset my authorization,as this has happen, because my e reader stops opening books from the public library and the only way to get it work is resetting the reade

[rtouesnard]

How do I reset my authorizations, so I can use the reader again. I have two e readers and they both stop accepting books from the public library and the only way to make them work again is by resetting the e readers and a new authorization.