Can Minecraft Realms (Pocket edition) not accept invitation?

Ja
- in Servers
1

In order to define the question more precisely, I would like to say the following: I can reject the invitation, but can't accept, in addition, when I try to accept the invitation, the following error message appears:

Due to the settings of your Microsoft account, you can't play online multiplayer games. You can view and change the privacy settings under aka.ms/accountsettings.

On the given page, I can't find any settings to fix it, and I've been able to join any server or online multiplayer game except Realms, as I found out in retrospect.

My account is an adult account, so you can also exclude this factor.

Uninstalling and reinstalling had no effect on it either. Rejecting the invitation and sending it again did not help either.

Does any of you have any idea what to do? I want to finally play with my friend on the realms, but that's slowly destroying any desire for it.

ps

This is a parental control, which must be turned off (possibly by changing the date of birth) in the XBOX / Windows settings.