Xbox One HELP! I can't join parties

[action jackson]

alright ive been letting my other family member use my xbox for a while now and i come back to see i cant join parties or create them. the only thing they did was diable notifications. ive tried privacy settings check my network connections and net type . please help!

 

[Aurraken]

I'm having the same problem. I can press the buttons to create and/or join a party, but it just simply doesn't do anything. I can't even send a party invite to my friends!