My location on "Find My" app freezing on home location permanently

i have a huge problem with find my Application. i can see my friend's location, but mine froze on the same position. no matter where i can be, it showing like i'm at my Home permanently. i reloaded the app, deleted all my Friends and added them again. problem wasn't solved either. i Don't know what to do, the gps in other apps is working right. the Device is iPhone 11 pro Max on the latest iOS. i would be very grateful, if someone knew how to solve this problem

[Re-Titled by Moderator]