The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/61703174741c381ee1a82f3b690d0703.gif" -- '\Large Ax\cos kx+Bx\sin kx'
returned status = 126
Image not found!
Please try the debugging script