The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/0b34322e47341163b35d2ea4ef9efe66.gif" -- '\Large y'\'''\''+\omega^2y=0 '
returned status = 126
Image not found!
Please try the debugging script