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A damaged system can be the caused of this error, Carol Lane.
Let's determine this further by running the Tool Hub. I'll show you how:
Then, let's use the Diagnostic Tool.
Afterward, let's open your QuickBooks file again. If you still get the same error, I would suggest reaching out to an IT expert. They're the best support that can verify the issue further and fix it.
I'm just here if you have other concerns with your file.