Please note that you are not allowed to distribute a modified version of the software. This violates the copyrights.I have my own WYSIWYG WEB BUILDER portable latest version which I made with cameyo. if you really want a quick solution for temporary purposes you can ask me the download link if you want.
The reported issue is a problem in Avast :
https://forum.avast.com/inex.php?topic=229182.0
So, only Avast can solve this. If you are a customer of their software then please contact them so they can prioritize their support.