May I asked what specific error your getting? This way, I can check if there are any open investigations about it.
For now, resetting the QuickBooks application is a good start when it comes to fixing program-related issues. Here are the steps to complete the process.
Click Help on the navigation bar at the top.
Select Reset App Data.
Allow a moment for the process to complete, and then close the app.
Be sure to right-click the app and Run as Administrator when re-opening.
If the issue persists, you can uninstall the application by following the outlined steps in this article: QuickBooks App for Windows and Mac: General support. Also, this write-up contains additional details regarding QuickBooks application's system requirements.
I've got your back if you need more help with the QuickBooks app. I'd be more than willing to lend you a hand.