[Daydream] Dedicated Server Crashed when player joined

Hi,

We are developing a multiplayer game for Google Daydream, the Engine version we are using is 4.14.3-googlevr-1.2. after I set up the dedicated server, and then I used client to connect to the dedicated server. The server just crashed, and I got this log, but don’t know how to fix it. Please help!![link text]
[1]: 128891-vrwizarddaydream.log (19 KB)