obj:
I think this is that dump1090-mutability is not disabling its lighttpd configuration when the package is entirely removed (purged), so part of your lighttpd config now points to a nonexistent file.
Try removing /etc/lighttpd/conf.enabled/89-dump1090.conf (if it is there, it’ll be a symlink pointing to a nonexistent file)
Also, if you’ve been messing around with config files be aware that reinstalling a package doesn’t restore deleted conffiles. You probably want to purge-and-reinstall at this point:
apt- get remove --purge lighttpd dump1090-fa
apt- get install dump1090-fa
(remove the obvious space used to work around mod_security)
Huzzah, thanks for the help, that worked. You were exactly right re: messing around with the conf files, and reinstalling doesn’t restore. The purge did the trick.
