Take a look at the crash file and see if anything has been reported.
cat /var/folders/k1/gz5zz7v100x5xsxl4qg7mx_m0000gn/T/linda.20150514.1827.crash
Part of the issue I believe is that it can't find the vectorRenderGlobals node type. When the program crashes, it tries to save a .ma file. Since unknown nodes can't be written in a .ma file, it tells you that there was an error. The real error is being caused by TfileTextureCache. Take a look at the crash file for more information, and also take a look at your textures - one of them might be corrupted.
Imagination is more important than knowledge.