The shell command
"/srv/www/0003_site/releases/4.1.17-6-dev/filter/tex/mimetex.linux" -e "/srv/www/0003_site/media/media_moodle/filter/tex/6c773b2b7798e5713845e475d0c4b4c7.gif" -- '\Large n_1'
returned status = 126
Image not found!
Please try the debugging script