PUBG Mobile Error Code 211-541 on iPhone Login

I've been having trouble getting into my PUBG account for the past day. I'm having trouble logging in through my iPhone email. It keeps showing me error code 211-541. I would appreciate your assistance. I've attempted to remove and reinstall the application, yet I am still encountering the identical problem. I have made significant progress in my account, so I kindly request your assistance in finding a solution to address this issue.