Error

encblog: load_prefs(): encblog: load_prefs(): in order to use the human-test feature, you must enable one of the following settings:

$PREF{try_to_use_convert_for_humantest}

$PREF{try_to_use_imagemagick_for_humantest}

$PREF{try_to_use_gd_for_humantest}