Starmaker Rewards Blocked Due to Multiple Accounts Error

I am using an Oppo A80 smartphone and for about one month, since I installed the Starmaker application, I have constantly been receiving an error message stating that participation with multiple accounts is not allowed. I only use a single Starmaker account and do not have any other accounts, yet the app continues to treat me as if I had multiple accounts and shows this warning. Because of this situation, I cannot use my account normally and I am unable to receive the rewards that I believe I am entitled to within the application. This is very frustrating, as I am following the rules and using only one account. I contacted Starmaker support about this problem, but they repeatedly replied only that having multiple accounts is forbidden, without actually checking my specific situation. They did not provide any concrete solution or explanation about why my single account is being flagged as multiple accounts. I kindly request that a detailed investigation be carried out into my account, that this erroneous warning be removed so that I can use my account without restrictions, and that the rewards I have earned in the application be granted to me.