I asked 2 times the author to have a help for redeem my code, i'm getting an error message no matter what. He doesn't care about his customers service. he sole purpose is to sale as much possible license in mean time during Black Friday. So beware where you put your money, there is other alternatives for AI on Appsumo such as Pretty Prompt.
I'm not the only one who as faced this
I wil ask for a refund.