The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/303b4d30aad20af6c6f6fce72bfc0af6.gif" -- '\Large \pi r^2 h = 1'
returned status = 126
Image not found!
Please try the debugging script