StoryReel Account Recovery

I have been using the StoryReel app with my existing account and Apple login without any issues until today. However, starting today, the app keeps crashing and does not allow me to log into my account. When I try to sign in, it shows an “Invalid User” error on the login screen. Before this, the app had already stopped letting me watch any content even though I was logged in, and now I cannot access my account at all. I contacted StoryReel support and informed them that I could not log in and previously could not watch anything, but the problem still continues. I currently log in with Apple, and because I cannot access my account, I am also unable to manage or cancel my subscription from within the app. I request that my access to my existing account be restored as soon as possible and that my subscription be properly managed so that I am not charged while I am unable to use the service.