Hello guys, most of the time while im teleporting i get this critical error, could you please tell me why is this happening? the server is L2 J :

2014.5.25 23:45:32
OS : Windows Vista 6.1 (Build: 7600)
CPU : AuthenticAMD Unknown processor @ 3215 MHz with 2047MB RAM
Video : NVIDIA GeForce 9400 GT (3523)

General protection fault!

History: UObject::GetPathName <- UObject::GetFullName <- TestReach <- UObject::GetPathName <- UObject::GetFullName <- UStruct::SerializeBin <- (Class Engine.ShadowBitmapMaterial ShadowActor[0]) <- UObject::Serialize <- (ShadowBitmapMaterial Transient.ShadowBitmapMaterial24) <- TestReach <- (ShadowBitmapMaterial Transient.ShadowBitmapMaterial24) <- UStruct::SerializeBin <- (Class Engine.ShadowProjector ShadowTexture[0]) <- UObject::Serialize <- (ShadowProjector 25_14.ShadowProjector24) <- AActor::Serialize <- TestReach <- (ShadowProjector 25_14.ShadowProjector24) <- ULevelBase::Serialize <- ULevel::Serialize <- TestReach <- (Level 25_14.myLevel) <- UStruct::SerializeBin <- (Class Engine.GameEngine GLevel[0]) <- UObject::Serialize <- (GameEngine Transient.GameEngine0) <- UGameEngine::Serialize <- (GameEngine Transient.GameEngine0) <- UGameEngine::Serialize <- (GameEngine Transient.GameEngine0) <- TestReach <- (GameEngine Transient.GameEngine0) <- TArray<< <- UGameEngine::L2SerializeRootSet <- UGameEngine::L2CollectGarbage <- UGameEngine::DetachLevel <- UGameEngine::CheckPurgeLevel <- Level_was_loaded <- UGameEngine::L2_Teleport <- UGameEngine::Tick <- UpdateWorld <- MainLoop