Error 2300 occurs while doing Short Circuit Analysis in ETAP 12.6.

I am trying to analyze a 30 bus system in ETAP. I did the load flow analysis and it gave good results. When I try to do short circuit analysis, an error occurs which is as follows, "Error 2300 [SC] No bus faulted". What can I do to remove this error? Is there a problem with the data I gave for the 30 bus system?
