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/a646dc7b14ab50b73d7ec36a75cf487d.gif" -- '\Large \frac{-3}{4}  \in  \mathbb{Q}'
returned status = 126
Image not found!
Please try the debugging script