Xbox pass invites on PC sending me to Microsft store and not letting me join my friends game

I mean when we try to play online, for instance ill send him an invite to my lobby and when he trys to accept it it sends him to the Xbox store same goes for me, on his side as well the option to join my game when on my Xbox profile is greyed out but mine isn't but if I click to join it sends me to the store

WHY IS IT NOT LETTING ME SEND INVITE'S TO MY FRIENDS IT'S NOT LETTING ME PLAY GAMES WITH MY FRIENDS. AND I DON'T NO WHY CAN YOU TELL ME WHY BECAUSE I DON'T NO WHY????

You're welcome to join the club that I'm in right now. We have a very large club so add me as a friend and I'll let my friend know so he can send you an invite.

i dont have any space on my friends list but inbox me or send me invites and i'll join have mic!

I have triple checked my privacy settings and nothing is preventing me from receiving and joining game invites. I have tested my NAT type multiple times and done lots of restarting my Xbox as well as re signing in and out of my Xbox profile . I have also checked my network connection no issues . It occasionally will allow me to join friends or invite friends to play free to play games but it’s extremely rare. I don’t play games that cost money due to liking warzone / fortnite . When I try to invite them it either doesn’t give the option to me to join and if it doesn’t it let them join. My friend said it just shows a white background.

I don’t have access to games that cost money but when I did have my Xbox subscription it allowed me too . My siblings who have Xbox accounts they are able to invite their friends to games and receive invites from games. And they are younger than me and have the same privacy settings as me.

When I try to join a friends game is says not available purchase modern warfare 2 to have access to everything. I cannot invite friends to games through their gamer tag and through the talking party.