Duplicate Icon fix on on Mac?

Hello, I have problem that when I try to open app, second (same) icon appears everytime. Is there any easy ways to make only one icon? Tried to remove app from dock and add it from Finder, but same situation :( Any fixes? OS: Sequoia 15.2 https://preview.redd.it/snrorustpcae1.png?width=462&format=png&auto=webp&s=d55bbde4578c3b91573d7ba933c4bda7819166b1