My dedicated server crashes after successful Servertravel with this error

My dedicated server crashes 10-12 seconds after successful Servertravel with this error

[2019.05.08-20.10.56:814][134]LogWorld: ----SeamlessTravel finished in 0.17 seconds ------
Signal 11 caught.
Malloc Size=65538 LargeMemoryPoolOffset=65554
CommonUnixCrashHandler: Signal=11
Malloc Size=65535 LargeMemoryPoolOffset=131119
Malloc Size=68112 LargeMemoryPoolOffset=199248
Malloc Size=53392 LargeMemoryPoolOffset=252656
Engine crash handling finished; re-raising signal 11 for the default handler. Good bye.
Segmentation fault (core dumped)

I solved it, turn out it was due to change in game mode after server travel, and in my new game mode Gamelift initSDk was missing