The shell command
"/var/www/html/eva.umcc.cu/filter/tex/mimetex.linux" -e "/opt/moodledata/filter/tex/80f845b7995d0974de2b6e401f9758b2.gif" -- '\Large \frac{y-4}{4y^2+7y-2} - \frac{y+2}{8y^2+10y} - \frac{4y+1}{2y^2+7y+6} '
returned status = 127
Image not found!
Please try the debugging script