Can’t add storefront links

i’m trying to add this in my seller central profile and copy and paste it but no matter what i do it says it is invalid. im guessing im missing something super easy. i own a brand and it registered and i authorized myself. the store page is different that the brand name. i was selling two products under generic until i got my trademark approved. that and how do i get my seller feedback to show up with my products.

i have done a fair amount of searches on the storefront thing and I can’t find anything that tells me what I’m missing