Avast won't exclude a false positive

I added the folder the .exe is in to the exclusion list, but whenever it tries to run Avast still puts it in the Virus Chest. I know it’s not a malware, as the source is trustworthy and everyone else has this same issue. People say to just turn off Avast for the time being, but that sounds risky. What can I do?

Hi OverHeatedLaptop and welcome to Avast! forum.

What the name of the file ?
Did you send it to Avast! virus lab as a F/P ?
Did you check it in Virus Total ? https://www.virustotal.com/
What shield is detecting the file ?
What exclusion list did you use ?