The shell command
"/srv/www/0003_site/releases/4.1.17-6-dev/filter/tex/mimetex.linux" -e "/srv/www/0003_site/media/media_moodle/filter/tex/93da2eaf2e67b247d23e9972eb4240c0.gif" -- '\Large \frac{a}{b}'
returned status = 126
Image not found!
Please try the debugging script