Due to a naming issue the addon "squid-accounting" is recognised as an addon-service in the services.cgi. The fix would be to blacklist the addon so that "squid" is not shown as addon service anymore
This commit should fix the Bug http://git.ipfire.org/?p=people/amarx/ipfire-2.x.git;a=shortlog;h=refs/heads/BUG10797
So I assume this can be fixed? :-)