Unidentified Bookmarks on Home screen

Hey,

I got this really weird issue for several years now. It’s not a big deal that prevented me using my iPhone so I never really tried to fix it until now. There are 12 in identified bookmarks on my iPhone home screen that keeps reappearing after I delete them. No matter how many times I delete them, they all pop back on my Home Screen within a few hours after a deletion. When I press to open these bookmarks, it leads to a blank Safari page. As I stated above, I have this issue for as long as I remember (at least 6-7 years) and it continues in new iPhones when I upgrade.

currently have iPhone 11th with IOS 15.

the best way I have to deal with it so far is to add them all to 1 folder on the home screen and by doing this it minimizes the presence of these bookmarks to one icon instead of 12. But still this isn't a solution really.

can anyone help me to get rid of it?