Negative delta time ?

[info at 64bit-servers.de]

I have a Signal: SIGSEGV [segmentation fault]:

25.226: Log: ########### Finished loading level: 7.962811 seconds
25.226: Log: Initializing Game Engine Completed
/home/icculus/projects/airborne/Development/Src/Unity/../Engine/Src/UnGame.cpp(4068): Assertion failed:  
appErrorf
Negative delta time! Please see  
https://udn.epicgames.com/lists/showpost.php?list=ue3bugs&id=4364
Signal: SIGSEGV [segmentation fault]
Aborting.

25.227: Log:
Developer Backtrace:25.227: Log: Developer Backtrace:
25.227: Log: [ 1]  ./mohaserver-bin [0x833f697]
25.227: Log: [ 2]  [0xffffe420]
25.227: Log: [ 3]  ./mohaserver-bin [0x873522d]
25.227: Log: [ 4]  ./mohaserver-bin [0x8afd3fc]
25.227: Log: [ 5]  ./mohaserver-bin [0x8eafd8e]
25.227: Log: [ 6]  ./mohaserver-bin [0x8ea53bb]
25.227: Log: [ 7]   
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xc8) [0xb7d16ea8]
25.227: Log: [ 8]  ./mohaserver-bin(__gxx_personality_v0+0xc1) [0x804bab1]

Crash information will be saved to your logfile.
25.228: Exit: Exiting.
25.231: Exit: Name subsystem shutting down