How to fix query processing error null

Greetings, @adtecsolutions.

Welcome, and thanks for visiting the Community. I'm here to help fix the error you're getting in QuickBooks Online (QBO).

May I know what specific error message you're having? Any additional information will help me provide the best resolution for your concern.

A good place to start an initial troubleshoot is by logging in to your QBO account using a private browser (incognito window) since this doesn't store data in the cache. Note that large data in the cache can affect QBO's behavior.

Here's how:

• Google Chrome: press Ctrl + Shift + N  
• Mozilla Firefox: press Ctrl + Shift + P
• Safari: press Command + Shift + N

If the error is gone, return to your default browser and clear its cache. This will remove the log files so you can start with a clean slate. If the issue persists, try using other supported browsers.

I also recommend visiting our website for tips and other resources you may use in the future: Self-help articles.

Leave a comment below if you need further help with errors or anything else in QBO. I'll be here to help. Take care.