DeploymentServer keeps crashing

I just set up UE4 on Win7 for mobile development and got my iPhone and iPad connected to the PC. I managed to deploy the game to my devices from the editor right after I set up all the iOS provisioning. But after a while, when I try to deploy, the DeploymentServer keeps crashing and the deployment fails. I have no idea why the DeploymentServer keeps crashing. Any ideas?

i also have this problem, have ideas to finish it?