The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/90097f9e260e744777f9f97927aa4ae0.gif" -- '\Large \frac{f(x)-f(x+h)}{h}\frac{1}{f(x)f(x+h)}=-f'\''(x)/f(x)^2,'
returned status = 126
Image not found!
Please try the debugging script