The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/7c9a708583ab18d5132689b5c0bab389.gif" -- '\Large \sum_{k=1}^{\infty}\frac{(-1)^{k+1}k}{2^k}= \frac{1}{2}-\frac{2}{4}+\frac{3}{8}-\dots'
returned status = 126
Image not found!
Please try the debugging script