HTMLDOC Problem:

Htmldoc produced no pdf-output.
Commandline:
/usr/bin/htmldoc -t pdf13  --webpage -f /data/www/we78085/hotel-ruebezahl.de/htdocs/typo3temp/hd_eQ0PzB - 2>/data/www/we78085/hotel-ruebezahl.de/htdocs/typo3temp/se_v8LjAJ

This is the (stderr) output of the htmldoc command without the htmldoc_append parameters:
If you see no errors here please check your htmldoc_append parameters too.
sh: 1: /usr/bin/htmldoc: not found