Crash problem

We have not found the solution to this problem within the group. The code given will run with the below texture file

Link for texture file is below

http://1800edrive.com/1800edrive/download/direct/workspace/SpacesStore/bf4794f7-df1c-11dc-8c20-6d2f8b3d9a91/dxt1.dds

Thanks for your help