It's the same issue that's been reported here. Otherwise, I don't know what to tell you.
You could try Support, and see what they have to say. Just go through the How To's & Troubleshooting prompts until you get to the black Contact Support box. Chat can be the quickest way to go, phone support is not toll free.
https://www.bitdefender.com/consumer/support/
Regards.
Very urgent issue
Additionally, can you upload the file to VirusTotal and share the VirusTotal link here?
Regards