Why can’t my friend hear me or add me on Xbox after I accidentally blocked him?

My name is Fernando I am an independent consultant, I am happy to

As he was blocked he no longer has access to his account so he cannot send or speak in the chat.

You can unblock a player at any time by sending a message or friend request to the affected player.

I hope I helped and until

Is there a chance your friend accidentally blocked you? The only reason I am asking that is because you can’t send messages to them or hear them in the party chat.

Have you tried it with a different group of people? I accidentally muted my friend and he could hear me but I couldn't hear him, what make is your headset?

My problem is that he isn't on my friend list. Due to a glitch of some sort, he was removed from my friend list after he blocked me and I can't add him back. I am on his friend list, but when I add him, it says "Sorry, we can't save your changes right
now. Try again in a while."

So me and my friend played one day and I accidentally blocked comms with him I re did everything so we could talk again but now we can't join each other's party but we can if a another friend is in