I have looked into this shop, there are no other overlapping shops, so there is no needed “fixing” merely when shop7 was pasted in you lost 1 block of a wall, from what you have posted looks like nothing was lost as there is a chest and signs that would have been on an existing wall.

You have decided to leave passive aggressive messages and remove every block of your shop and replace it with lava, staff have warned you to use the shop as an actual shop but you haven’t.

because of this childish time wasting behavior I have removed you from renting a shop.