Why can't I log in to my mobile app with my existing account?

[OzarkOutdoor]

Hello,

I am currently signed in and I know what my password is for my Shopify account. I am trying to log in to my store on the Shopify Mobile app and every time I type the email and correct password, it says "This email has already been taken" and it prompts me to create a new Shopify account. I also tried using the login with gmail and I get the same exact message. I am able to log in seamlessly on desktop.