i can't join my friends

hi there i was online 1 day and i saw all my fredns offline even my friend that i was on a call with in discord and he was playing stuff he had the same thing and i just got gifted nitro and the person that gifted it to me has the same thing i tried evrthing i tried logging out i tried not playing for 2 days still nothing please fix it thank you ps my discord name is 44max42 if you want to text me thank you