First, if ads work normally most of the time, your points won't be reduced -- it takes a lot of those errors before that will happen. You can tell if points are being reduced by visiting the Settings -> Points page and hovering over the top item. It would say "Points reduced due to using ad-blocker"
Second, you this page helps figure out why it's happening: http://wiki.warlight.net/index.php/Ad_error
Third, you should use http://warlight.net/ReportBug
if you need help.