When compiling the ruleset, the whole output is redirected to /var/log/httpd/error_log which is very unnecessary. Please redirect this into an extra oinkmaster.log file in /var/log or something.
https://git.ipfire.org/?p=ipfire-2.x.git;a=commitdiff;h=e96adc77972108de9cb8b4b6c0f7fbad07b76035