2

have you tested the code at www.virustotal.com if scanned before click rescan for a fresh result
Post link to scan result here

You can send file from chest (quarantine) to avast lab as False positive

How to use chest https://www.avast.com/en-us/faq.php?article=AVKB21#artTitle

Or send here https://support.avast.com/support/tickets/new?form=3