The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/09b85abb3de73f359ff931977e707547.gif" -- '\Large \displaystyle E=E_{\text{Fe}_2\text{O}_3/\text{Fe}^{2+}}^0+ \frac{RT}{2F}ln \frac{(c_{\text{H}^+})^6}{(c_{\text{Fe}^{3+}})^2} '
returned status = 126
Image not found!
Please try the debugging script