Hello there, Brandon68.
We are currently experiencing an issue with signing into the QuickBooks Online (QBO) app, which is causing the "can't find the email or password" error. Our engineering team is actively working to resolve this as quickly as possible.
In the meantime, you can log into your account using a web browser to continue using QuickBooks without interruption. I also recommend reaching out to our support team so they can add you as one of the affected users. This way, you will be looped in once the issue is fixed. To do so, follow the steps below:
- Navigate to the Help menu on the upper-left corner of your QuickBooks account.
- Go to the Search tab and type in Contact us.
- Click the Contact Us button.

- Choose the Chat or Callback option.
For more details on how to access the latest information in your mobile app, please refer to this article: See the Latest Available Information in the QuickBooks Mobile App.
If you haven't completed setting up your account yet, using a web browser might provide a more convenient experience. You can find helpful information here: Get Started with QuickBooks Online.
If there's anything else that I can help you with when accessing QBO, reply a comment below so I can help you. I'll be more than happy to assist.