Game keeps crashing in single player when loading a spawn?

[joshuam303@hotmail.co.uk 0]

This is the error , is there any fix? I just want to play :(

Fatal error: [File:D:\AtlasSVN\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp] [Line: 4073] 
Bad name index -1641380927/212

VERSION: 554.3 
KERNELBASE.dll!UnknownFunction (0x00007ff9e776cd29) + 0 bytes [UnknownFile:0]
AtlasGame.exe!FOutputDeviceWindowsError::Serialize() (0x00007ff61acb9357) + 0 bytes [d:\atlassvn\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
AtlasGame.exe!FMsg::Logf__VA() (0x00007ff61ac7905d) + 0 bytes [d:\atlassvn\engine\source\runtime\core\private\misc\outputdevice.cpp:522]
AtlasGame.exe!ULinkerLoad::operator<<() (0x00007ff61ad19cca) + 78 bytes [d:\atlassvn\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:4073]
AtlasGame.exe!operator<<() (0x00007ff61b03406d) + 0 bytes [d:\atlassvn\engine\source\runtime\shadercore\private\shader.cpp:217]
AtlasGame.exe!TShaderMap<FGlobalShaderType>::SerializeInline() (0x00007ff61b493512) + 0 bytes [d:\atlassvn\engine\source\runtime\shadercore\public\shader.h:1075]
AtlasGame.exe!FMaterialShaderMap::Serialize() (0x00007ff61b93e3f7) + 0 bytes [d:\atlassvn\engine\source\runtime\engine\private\materials\materialshader.cpp:1741]
AtlasGame.exe!FMaterial::SerializeInlineShaderMap() (0x00007ff61b940b5b) + 0 bytes [d:\atlassvn\engine\source\runtime\engine\private\materials\materialshared.cpp:857]
AtlasGame.exe!SerializeInlineShaderMaps() (0x00007ff61b8dc716) + 0 bytes [d:\atlassvn\engine\source\runtime\engine\private\materials\material.cpp:486]
AtlasGame.exe!UMaterial::Serialize() (0x00007ff61b8e1c97) + 0 bytes [d:\atlassvn\engine\source\runtime\engine\private\materials\material.cpp:2110]
AtlasGame.exe!ULinkerLoad::Preload() (0x00007ff61ad16db0) + 0 bytes [d:\atlassvn\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3025]
AtlasGame.exe!FAsyncPackage::PreLoadObjects() (0x00007ff61ace6244) + 0 bytes [d:\atlassvn\engine\source\runtime\coreuobject\private\serialization\asyncloading.cpp:1132]
AtlasGame.exe!FAsyncPackage::Tick() (0x00007ff61ace44d3) + 8 bytes [d:\atlassvn\engine\source\runtime\coreuobject\private\serialization\asyncloading.cpp:302]
AtlasGame.exe!ProcessAsyncLoading() (0x00007ff61ace74c8) + 24 bytes [d:\atlassvn\engine\source\runtime\coreuobject\private\serialization\asyncloading.cpp:1605]
AtlasGame.exe!FlushAsyncLoading() (0x00007ff61ace71a0) + 16 bytes [d:\atlassvn\engine\source\runtime\coreuobject\private\serialization\asyncloading.cpp:1450]
AtlasGame.exe!ULevelStreaming::RequestLevel() (0x00007ff61b521c22) + 23 bytes [d:\atlassvn\engine\source\runtime\engine\private\levelstreaming.cpp:592]
AtlasGame.exe!UWorld::UpdateLevelStreamingInner() (0x00007ff61b761a7d) + 0 bytes [d:\atlassvn\engine\source\runtime\engine\private\world.cpp:2656]
AtlasGame.exe!UWorld::UpdateLevelStreaming() (0x00007ff61b76273d) + 0 bytes [d:\atlassvn\engine\source\runtime\engine\private\world.cpp:2830]
AtlasGame.exe!UGameViewportClient::Draw() (0x00007ff61b470b76) + 0 bytes [d:\atlassvn\engine\source\runtime\engine\private\gameviewportclient.cpp:907]
AtlasGame.exe!FViewport::Draw() (0x00007ff61b71453a) + 0 bytes [d:\atlassvn\engine\source\runtime\engine\private\unrealclient.cpp:1082]
AtlasGame.exe!UGameEngine::RedrawViewports() (0x00007ff61b451201) + 0 bytes [d:\atlassvn\engine\source\runtime\engine\private\gameengine.cpp:606]
AtlasGame.exe!UGameEngine::Tick() (0x00007ff61b45332e) + 0 bytes [d:\atlassvn\engine\source\runtime\engine\private\gameengine.cpp:1414]
AtlasGame.exe!FEngineLoop::Tick() (0x00007ff6194d26d6) + 0 bytes [d:\atlassvn\engine\source\runtime\launch\private\launchengineloop.cpp:2730]
AtlasGame.exe!GuardedMain() (0x00007ff6194ccc9c) + 0 bytes [d:\atlassvn\engine\source\runtime\launch\private\launch.cpp:140]
AtlasGame.exe!GuardedMainWrapper() (0x00007ff6194d574a) + 5 bytes [d:\atlassvn\engine\source\runtime\launch\private\windows\launchwindows.cpp:125]
AtlasGame.exe!WinMain() (0x00007ff6194d5878) + 8 bytes [d:\atlassvn\engine\source\runtime\launch\private\windows\launchwindows.cpp:209]
AtlasGame.exe!__tmainCRTStartup() (0x00007ff61c80cb9d) + 21 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]
KERNEL32.DLL!UnknownFunction (0x00007ff9e94974b4) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ff9e9a226a1) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ff9e9a226a1) + 0 bytes [UnknownFile:0]