It could be that webgl is not available but it should be on Chrome. You may need to enable webgl as it could disabled for some reason. Check this post IE10 (or less) and Context3D not available
Starling is initialised in the com.glasirgames.thword.config.ViewConfig.hx
The fail point would be happening there so you want to investigate where it is occurring. Do a search on the problem, you may find an answer. Let me know how you go.