Minecraft Bedrock Realms

Yesterday I bought a realm in Minecraft Bedrock, everything was fine until my friends decided to go into it, no one could enter either through the code or through the link, and, in the server settings, I kind of invited them, but my server is not displayed and I like I go to him I can not invite them because they are not in the list of my friends to invite. I already bought a server, and we played all together, everything was fine, we finished playing 3-4 months ago, and I didn’t do anything with minecraft and didn’t delete it, I could see the avatars of my friends, but now I don’t. We are all xbox friends, we all have the same version of Minecraft, I have already logged into Minecraft with my X-box account and reinstalled Minecraft, please help.