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/4dbbc0e0c2e342adba0fa1f9e26a7199.gif" -- '\Large ad=bc'
returned status = 126
Image not found!
Please try the debugging script