The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/6f65eaab9b3b06ee68dca70d90924867.gif" -- '\Large \frac{d}{dx}f(g(x))=f'\''(g(x))g'\''(x).'
returned status = 126
Image not found!
Please try the debugging script