I created a new world, I was playing a while and then i decided to invite my friend to play together. I sent tousand of invites but he didnt receive them. I looked into in-game settings and Multiplayer settings were disabled and grayed. I have no idea why but even when I closed world and look for same Multiplayer game settings but in menu, those were enabled. Please can someone help me? I don't want waste my beautiful world playing alone

PS: Also I found on Google some ways to fix that, like reinstalling MC and Xbox app but they didn't work. Also I checked if I can join to other friends' worlds and yes, I can, only me can't invite them to my world. Ah don't think we were using different networks, lmao.

Below I'm attaching screenshots of those Multiplayer settings, in menu and in game.