You still could trace the calls back with the callstack provided in VS, but you'd eventually end up in some SFML resource/context code and wouldn't be able to figure out what goes wrong either.
You need to provide a bit more information so we can say what porbably happens.
What exacte version of SFML 2 are you using?
Do you link dynamic or static?
Do you compile in debug or release mode?
Do you use the default font?