Do you face error 3100 randomly while working on QuickBooks? Do you know why this random error pops up on your screen and crashes Your software? Sometimes when you are just working on QuickBooks that are opening any file, your system automatically crashes the software and throws you back to the home screen of the desktop. And there is a window of notification with QuickBooks error code 3100. Sometimes such errors can be dangerous, but when you are just working on QuickBooks, and it's simply crashing, it isn't very pleasant.

3100 is a runtime error in a QuickBooks application. When you get error 3100, your QuickBooks application automatically crashes and shuts down.
Source: https://www.axpertadvisors.com/quickbooks-error-3100/