Strange 404s When Adding Product and Collections

Hi. Getting some weird 404 where the url is being generated with our http address tagged to the end.

This has evidently been going on for years and I am seeing it collections as well as products

For example:

(https://) amusespot.com/collections/abbiamo-tutto-frutta-blu/products/amusespot.com

Has anyone else had this issue and understand where it is coming from?

The only issues we have had in adding products is that sometimes we save a product and although the product is saved we get a notice that it is not saved when we attempt to migrate from that specific page on the backend.

Ideas?