ZylonBane on 6/8/2014 at 20:37
It clearly says it can't load the texture. So either the texture is unreadable, or not where the engine expects it to be. We have no way of knowing exactly how you've screwed up.
Daraan on 6/8/2014 at 20:49
I can only think of two very basic reasons
1) file is not there, or named different
2) Wrong file format (not 2^x), extension, wrong compression
Tested it with my own diagenv.png and had no problem.