A screenshot (attached to your next post) of the avast alert window with the more details option opened.
The reference number doesn't have any meaning to the majority of Avast Users trying to help in the forums.
Please break the link to what is a suspect file to avoid accidental exposure,
e.g. formbuilder.online/assets/js/form-render.min.js
Your VirusTotal link doesn't go to the actual scan and a search for the file or URL on VT returns zero hits.