Hello Dusty9029,
Let's reset you app to clear its cache. This will delete your app's history and cookies and fixes any app issues. Let me guide you how.
- Click Help.
- Choose Reset App Data.
Once done, open the app and check if you're still getting the error again.
If you need some help articles for your future tasks, please check this link: Apps for QuickBooks Online.
Reach out to me if you have other concerns. I'm here to help you some more.