This error is in log files, crash stack.
LowLevelFatalError [File:E:\build\Consoles\XB1Live798\Engine\Source\Runtime\Engine\Private\World.cpp] [Line: 6884]
Unable to load world object headers from world save file.
KERNELBASE.dll!UnknownFunction (0x00007ff8d8c49159) + 0 bytes [UnknownFile:0]
ShooterGameServer.exe!FOutputDeviceWindowsError::Serialize() (0x00007ff7253827aa) + 0 bytes [e:\build\consoles\xb1live798\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
ShooterGameServer.exe!FError::LowLevelFatal() (0x00007ff725350f4a) + 0 bytes [e:\build\consoles\xb1live798\engine\source\runtime\core\private\misc\outputdevice.cpp:354]
ShooterGameServer.exe!UWorld::LoadFromFile() (0x00007ff725b01bf2) + 24 bytes [e:\build\consoles\xb1live798\engine\source\runtime\engine\private\world.cpp:6884]
ShooterGameServer.exe!AShooterGameMode::LoadWorld() (0x00007ff7246cb7f5) + 24 bytes [e:\build\consoles\xb1live798\projects\shootergame\source\shootergame\private\shootergamemode.cpp:2623]
ShooterGameServer.exe!AShooterGameMode::InitGame() (0x00007ff7246b81a6) + 12 bytes [e:\build\consoles\xb1live798\projects\shootergame\source\shootergame\private\shootergamemode.cpp:1424]
ShooterGameServer.exe!UWorld::InitializeActorsForPlay() (0x00007ff725af93c7) + 53 bytes [e:\build\consoles\xb1live798\engine\source\runtime\engine\private\world.cpp:3616]
ShooterGameServer.exe!UEngine::LoadMap() (0x00007ff725ad4ee6) + 0 bytes [e:\build\consoles\xb1live798\engine\source\runtime\engine\private\unrealengine.cpp:10371]
ShooterGameServer.exe!UEngine::Browse() (0x00007ff725ad1af1) + 43 bytes [e:\build\consoles\xb1live798\engine\source\runtime\engine\private\unrealengine.cpp:9045]
ShooterGameServer.exe!UShooterGameInstance::StartGameInstance() (0x00007ff7246a0dc8) + 0 bytes [e:\build\consoles\xb1live798\projects\shootergame\source\shootergame\private\shootergameinstance.cpp:486]
ShooterGameServer.exe!UGameEngine::Init() (0x00007ff7258d5986) + 0 bytes [e:\build\consoles\xb1live798\engine\source\runtime\engine\private\gameengine.cpp:685]
ShooterGameServer.exe!UShooterEngine::Init() (0x00007ff72469a7bb) + 0 bytes [e:\build\consoles\xb1live798\projects\shootergame\source\shootergame\private\shooterengine.cpp:219]
ShooterGameServer.exe!FEngineLoop::Init() (0x00007ff72422edc0) + 0 bytes [e:\build\consoles\xb1live798\engine\source\runtime\launch\private\launchengineloop.cpp:2205]
ShooterGameServer.exe!GuardedMain() (0x00007ff72422b66b) + 12 bytes [e:\build\consoles\xb1live798\engine\source\runtime\launch\private\launch.cpp:128]
ShooterGameServer.exe!GuardedMainWrapper() (0x00007ff724230b8a) + 5 bytes [e:\build\consoles\xb1live798\engine\source\runtime\launch\private\windows\launchwindows.cpp:125]
ShooterGameServer.exe!WinMain() (0x00007ff724230ce1) + 8 bytes [e:\build\consoles\xb1live798\engine\source\runtime\launch\private\windows\launchwindows.cpp:213]
ShooterGameServer.exe!__tmainCRTStartup() (0x00007ff7268dda6d) + 21 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]
KERNEL32.DLL!UnknownFunction (0x00007ff8daaa7974) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ff8dcbba261) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ff8dcbba261) + 0 bytes [UnknownFile:0]
-- Tried a map backup, don't know if I should do the server backup or the database backup... none of that is really explained by nitrado and i'm tired of just sitting around telling my players that they're screwed until nitrado fixes it.
*EDIT*
Map was working fine then all of a sudden went poof. Nitrado hasn't been much help by any means. Told them it wasn't showing up on the list and they took it as "Map must be in restart loop so lets not do anything but verify it isn't restarting over and over then say it's been fixed"