QuicBooks error 3371 usually occurs due to a corrupted or damaged entitlement data store.ECML which holds the properties of your License agreement. When this message QuickBooks error code 3371 "could not initialize properties" appears on your open window, it leads to the error 3371.
Causes and Factors Behind the Error 3371 License Issue
Due to damaged QuickBooks data
Damaged MSXML...
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