Are you still selling the stores? I'll be honest with your, it seems a bit strange the fact that you are selling the stores. The products aren't bad, therefore, there should be enough people interested in buying them. Consequently, I have two theories so far. Firstly, you are truly bad with the advertising and people simply don't get to know about your products. Secondly, you've priced the products incorrectly (it can be both too much or not much enough). I once had this issue with phoebe bridgers merch as I priced it too low, and people thought it was a scam.