Topic is solved: use switchlevel to load another map and not open.
</edit>
I have a test map for multiple proposes and recently I wanted to load it at my server online - but now the map crashes the server. Several months ago the map run fine there, and my local "template" server runs it currently fine, too. (The online server is a copy of my local template server where I test stuff before I take it on line. Of course some small differences are there in INI files concerning redirect server, debug level and such. Another difference is the underlying OS: online is running an Ubuntu 14.04.5 LTS 64 bit, the local server is running Ubuntu 12.04.5 LTS 32 Bit.)
Maybe someone can have a look what's wrong with that map? (-> Download, 3 MiB)
Thanks.
The server's complete log is on pastebin. I guess the most important part is
[SCF] Developer backtrace (9):
[SCF] 000: ./Engine.so(ReceivedRawBunch__8UChannelR8FInBunch+0x3a5) [0xb753588d]
[SCF] 001: ./Engine.so(ReceivedPacket__14UNetConnectionR10FBitReader+0x101d) [0xb7547de1]
[SCF] 002: ./Engine.so(ReceivedRawPacket__14UNetConnectionPvi+0x1e0) [0xb7545d78]
[SCF] 003: ./IpDrv.so(TickDispatch__13UTcpNetDriverf+0x1053) [0xb6b41cdb]
[SCF] 004: ./Engine.so(Tick__6ULevel10ELevelTickf+0x2b5) [0xb759288d]
[SCF] 005: ./Engine.so(Tick__11UGameEnginef+0x4d5) [0xb756f1cd]
[SCF] 006: ./Engine.so(Main__17UServerCommandletPCc+0x333) [0xb75595c7]
[SCF] 007: ./ucc-bin(main+0x28ed) [0x804f981]
[SCF] 008: /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0xb6e24af3]