The error instructs me to post the log file here in the forums.
No mods
Crashes every time I try to load this save file.

I've attached the factorio-current.log file

My map is mostly desert which makes it hard for me to quickly identify my rail system. I tried to modify the config file which now looks like this -- You can choose your own colors here, for example to add color to other mods' items. -- Colors can be expressed in standard Factorio Red-Green-Blue tab...