For some reason a gif I uploaded does not render on OGF. The file can be accessed perfectly well and the full picture can be used on my wiki page about the Agarderia-Karamsk War. However, if I make the picture any smaller, an error message pops up, as shown here. A slightly different error message appears for the actual image, which is here. I uploaded it again as ‘Agarderia War’, yet the same message appears.
Does anybody know what is wrong with the file and what can be done to solve it?

Discussion
Comment from Pawl on 3 October 2016 at 15:24
My guess is that this is one for Thilo … a problem on the server rather than with your file. But I could be wrong!
Comment from thilo on 3 October 2016 at 16:14
Seems to be fixed now. I had to modify a memory size setting in the Mediawiki configuration file.
Comment from Yuanls on 3 October 2016 at 20:06
Thanks for that! It’s working now.
Comment from PColumbus73 on 13 October 2016 at 01:35
Very nice graphic! I would suggest adding labels to your GIF. My first impression was that this was a map showing shoreline changes.
Comment from Yuanls on 13 October 2016 at 23:32
@PColumbus
Thanks! I was considering adding labels but as the picture will only go on the wiki page the caption and legend are provided there.