That's not German. Probably a language from the far north, according to the letters, lol. Anyway, that's the Windows XP error, and the language has nothing to do with AnthemRO.
Anton, the links in the topic are most likely outdated, so is DyeFire. This tool is not needed anymore, since dyes are now built into the client itself.
I don't know if you have got a fully patched Sakray (but since you say that you get sprite errors, you probably haven't), if not, downloading the following file (it's big) will most likely fix the problems you have:
Downloaded this :
http://lolfail
It's the whole AnthemRO folder which has been uploaded by Zone.
Btw, both screenshot links lead to the same image. :X