problems with using SDMstools

[kaky]

Dear all

Please i have some problems with SDMstool when i want to estimate species richness, first when I put every things in its place to estimate Spp. richness the tool is run but automatically the arcGIS shutdown i don't know what is the problem. second when i want to create bias file by  sample by Distance from Obs. Pts or by Buffered MPC every thing going well and the tool said processed successful but when i go back for output folder it is empty please can you advice my to cover these problems.

Regards

emad