HTMLDOC Problem:

Htmldoc produced no pdf-output.
Commandline:
/usr/bin/htmldoc --logoimage http://www.hawi-tec.com/uploads/tf/logo.jpg -t pdf13  --webpage -f /var/www/vhosts/hawi-tec.com/httpdocs/typo3temp/hd_yFLfjL - 2>/var/www/vhosts/hawi-tec.com/httpdocs/typo3temp/se_whzgcp

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: /usr/bin/htmldoc: No such file or directory