League ERROR [30000]

Hi everyone! 

I am facing league error issue since more than 3 weeks now and still the in-game customer service has not responded to my complaint yet. Hope i can find some help here.

My Details:

UID: 882570772665561088

IG Username : urPAZL

OS: iOS 18.5

League name: UZBEK POWER

I left a league some days before and when i join a new league, i got an "ERROR [30000]". Thereafter i am unable to participate in any league activities, not able to claim any league rewards/quests. Even when I try to leave the league, it shows an error "You are not a member of this league [200013]". but I can clearly see the current league information.

I am stuck in this league and can't leave or claim any rewards here. Please help me in getting this resolved as I am not enjoying the game without league tournaments and rewards.

PFA screenshots for reference.