This is a problem on your PC, but I need more information to determines which one. Above all, do a virus test. Sudden crashes of a certain program function could be caused by a partial damage of the program file, and this is usually caused by a virus. Also, re-install Gamestudio to fix a possibly damaged installation.

Another possible reason is a wrong setting of your virtual memory, as I suppose you have a very old PC. Open the System Setting and put virtual memory back to its default value, around 1 MB.

After you've done that, please try again and if it crashes again, send the _wed.txt to the support. This text file can be found in your Gamestudio folder after a crash.