The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/70edbec7d89f3c05c75220eb740cd35e.gif" -- '\Large f^{-1}\colon B \to A'
returned status = 126
Image not found!
Please try the debugging script