Can’t add any new friends- I can’t accept. They can’t accept. It’s only me.

Anytime I try and add a friend I meet in squad fill- they get the friend request- they hit accept. But it doesn’t accept. It just stays in their request. Whenever someone tries to add me- it just stays in my requests no matter how many times I press accept. But the two other people im with add each other just fine so it’s some problem with my account. Any ideas on what I can do? I’ve met a lot of people in the last two weeks I want to play with again but I can’t add any of them. Bungie name is CaptainCook#2172