UE4 starting stuck at 75%

The only thing I do is change


to another DataTable like


then I save and start the game in editor,it crashed.I can not start the ue4 success anymore,when I try to start it,the only log it shown is:

Log LogPython Using Python 2.7.14
Log LogTcpMessaging Initializing TcpMessaging bridge
Log LogUdpMessaging Initializing bridge on interface to multicast group

I changed that line to the old version but still cant start ue4,also delete Binaries and rebuild.