The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/eadebb9b38b7c8932fba6ca3556dfdea.gif" -- '\Large \upsilon_+=2, \upsilon_-=1,z_+=+1,z_-=-2 '
returned status = 126
Image not found!
Please try the debugging script