Hmm perl.com too and perldoc.com search gives:
ht://Dig error
htsearch detected an error. Please report this to the webmaster of this site. The error message is:
Unable to read document index file '/home/perldoc/htdig/db/db.docs.index'
Did you run htmerge?
ht://Dig error
htsearch detected an error. Please report this to the webmaster of this site. The error message is:
Unable to read document index file '/home/perldoc/htdig/db/db.docs.index'
Did you run htmerge?