Connecting to realms

Ever since i have deleted and reinstalled the xbox live app to add my friend, i have encountered issues in regards to joining realms. At the top of the Worlds and Friends tab, it says that i am unable to connect to realms, and should try again later. As well as this, whenever i try and join servers, such as Hive or Cubecraft.

Please try and fix this issues as soon as possible.

Thank you.