I would like to use my account on bidslammer again.
I get the popup of Authorization Required, I have done the process on Ebay, came back on bidslammer, and i get both notification of success, and STILL Authorization Required
Anyway I cannot use the sniping functionality

Hello Valerio,
Thank you for your question about your authorization. We just updated it manually for you. We had to do this because your account is a "legacy" account that was created before a software update we released in March 2020.
As of this writing, you should be able to log in to BidSlammer with your new ID with no additional steps on your part, using the same password as before.
If this did not resolve the issue, please let us know so that we can take the next step. We're also happy to help with any other questions you may have.