http://www.moosoft.com/ belongs to the security company moosoft wich makes security programs and the site is safe.
WebRep is based mostly on popularity and not necessarily on the site itself. It may be that someone dislikes your product and gave it a bad rating. Or perhaps there is a conflict with avast. There could be many reasons your site is red not green. I noticed there have been very,very few votes concerning your site. That could be a reason also. Also there has been problems with WebRep and you might need to show a little patience while the kinks are being worked out. If there is a problem at the avast end they are working on it. Keep us posted. 