Staad Foundation crashes when many columns/loads

Hi everyone, 

My models with large number of supports and / or loads, always crash. I can leave them running all night but the next day the screen is the same, always in "Pedestal Design..." and Windows Task Manager shows "Not responding".

My version is STAAD Foundation advanced CONNECT Edition 9.5.0.62.

In the file attached, I cannot run Job FZ2:

Large columns and loads.sfa