Hello @wolffixer,

You can switch as a single user mode then Run a Verify and Rebuild to fix data damage on your QuickBooks Desktop.

To Verify:

1. Click File at the top menu.
2. Go to Utilities then select Verify.

To Rebuild:

1. Click File at the top menu.
2. Go to Utilities then select Rebuild.

Once done, try setting up a scheduled report in your QuickBooks.

For your reference, read through this help article: Fix data damage on your QuickBooks Desktop company file. It has the basic steps in using the Rebuild Data tool as well as using the file doctor. 

Let me know if you have more questions. We're always delighted to be your QuickBooks guide.