Discord has completely vanished from my Xbox, does anyone know how to fix.

[sour light]

I was playing all yesterday with my friends on Discord and then within the last 10-12 hours it has completely been removed from the console, I've asked my friends on Xbox and they still have it but mine is just 100% gone meaning I can no longer play with my friends on PlayStation or pc because we have no way to communicate and I really need it to fix, if anyone knows how to fix it please let me know I would really appreciate it