Project Crash at th beggining

my project wont open with the default map and i have tried changing the default map and it worked and loaded the project but still i cant open my map and i dint know whats wrong
here is my crash report :
link text

its solved now
my project is a thirs person so my default map is the third person example map
i’ve changed the default map from Config\DefaultEngine and loaded the project and then removed the thirdpersoncharacterblueprint from contents and loaded thirspersonmap again and its fixed now.