Leauge joining problem

I am also facing this problem bro 

You solve this problem if you also this problem then help me bro

Remove your UID from the post for security reasons. Have you tried joining an open league or applying to one? Does the same thing happen if someone invites you to a league? Have you tried creating your own league to see if it works? There have been a few random issues with league joining and quitting, but I don’t recall seeing this specific error.

some screenshots of the error messaged would help t3yq278q1fza​  wfghgqzehsba​