In the summer I had a lot of views. I didn't to ads and I still had views. I modified my shop name and now a trickle. Did me modifying my shop name change things?
There are literally hundreds of thousands of other shops on Etsy selling POD t shirts and sweatshirts. Many have very similar, if not identical, images.
Your shop's SEO isn't as good as it could be.
Your items are SOMEWHERE in search, perhaps not high enough to be found organically in search by shoppers.
I highly doubt your name change had much to do with it.
Part of it may be that your shop is throttled for using copyrighted images.
What copywrited images?
The Designs are not new. You find thousands of them here on Etsy. And most of theses Creations are made by KI. This is not new too. Customers get borred on the same Designs. You need something real special. Dont let the Ki do your work. And smilies are copyrighted too. They are not allowed
Changing your shop name is not the reason. You are competing with hundreds of other POD shops. You need to be unique to stand out from the crowd
Because of the extreme competition from other POD suppliers, your "No Return" policy could be hurting you. You state returns aren't accepted because they're "custom" made but they aren't - they are "made to order." Custom involves personalization requested by the buyer.
Thank you to all that had KIND remarks to say. I have no idea who Ki is . My mockups I purchased or I use my subscriptions to Creative Fabrica and Canva. It was my impression as long as you change up designs on these, we are allowed to use them. Some things I made on my own.