We're now working to resolve this issue right away, staff.
The error you're getting when customizing a report by customer type has been escalated to our product team. They're still investigating its cause to determine the solution. Right now, I'd recommend giving us a call. We'll add you to the affected users' list, so you'll receive an update when there's an available fix.
You can get our contact number by following these steps:
- Go to this link https://help.quickbooks.intuit.com/en_US/contact.
- Select QuickBooks Online.
- Click the Running your business in QuickBooks topic.
- Click the Reports sub-topic.
- Scroll down and click the Get Phone Number button.
I appreciate your patience on this. Please let me know if there's anything else I can help you with.