Some more news: I managed to get access to the paypal account, and noticed that the 0.95 euros from the previous sales weren't actually transferred because they're not over the limit that redbubble has set for monthly payments. I looked a bit into it and I'm actually not certain when that money will be transferred into the account, but I'll try to keep y'all posted. If you want, I can make a small donation of my own in a charity to cover for that profit.
In any case, the shop isn't making any profits now as I set the margin of the prices to 0%. Because redbubble added a free-account fee some time ago, we would make half of any profits we made before, so it wouldn't be worth it to raise the margin. I'm only keeping the shop open with a few designs just in case fans want any merch.
I'm open to suggestions and if someone wants to take over from me, but for the moment I made a better record of the new credentials, so I don't mind keeping the shop up. Just note that I don't check the accounts very often, so if any issues arise you're welcome to contact me at my main blog @piracytheorist.