Yep, the theme you have does not have the cronimage in it.
Open the "footer" template and add:
HTML Code:
{vb:raw cronimage}
inbetween the comments of the cronimage removal warning:
HTML Code:
<!-- Do not remove cronimage or your scheduled tasks will cease to function -->
{vb:raw cronimage}
<!-- Do not remove cronimage or your scheduled tasks will cease to function -->