Clash of Clans Locked Me Out of My Main Account After Closing My Second Account

I had two Clash of Clans accounts, and I decided to close the one that I wasn't using anymore. Unfortunately, since the closure, the game continues to log into the closed account, preventing me from accessing my main account. I’ve attempted every conceivable fix—uninstalling and reinstalling the game multiple times, rebooting my device, and even clearing the game data—but nothing has resolved the issue. The game continues to lead me to the closed account, leaving me unable to access my main progress. I’ve looked for comparable experiences but haven’t come across a definitive answer. I would be grateful for any assistance in resolving this issue and restoring my main account, as I have dedicated significant time and effort to it. I appreciate any help you can provide. Thank you!