The shell command
"/var/www/moodle/filter/tex/mimetex.linux" -e "/mnt/efs/moodledata/filter/tex/6cf1348bc73d443ef5241e4297d7459a.svg" -- '\Large \operatorforbiddenkeyword_name {P} (X_{1}=x_{1},\ldots ,X_{n}=x_{n})=\prod _{v=1}^{n}\operatorforbiddenkeyword_name {P} (X_{v}=x_{v}\mid X_{j}=x_{j}{\text{ for each }}X_{j}\,{\text{ that is a parent of }}X_{v}\,)'
returned status = 126
Image not found!
Please try the debugging script