UE4Editor crash when server down

I am using a AHttpActor class to connect to my server and log in.
The application needs to give an error when the server could not be reached so to test this i turned the http server off.
To my surprise the UE3Editor crashed completely.
Of course i don’t want my game to crash so i need to know what is going on.
I hope anyone can help…

This is my response code.

void AHttpActor::OnLoginResponse(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful) 
{

    if (!HttpRequestSuccess = ResponseIsValid(Response, bWasSuccessful)){
	return;
    }

    //Create a pointer to hold the json serialized data
    TSharedPtr<FJsonObject> JsonObject;    void AHttpActor::LoginToServer() {
    TSharedRef<IHttpRequest> Request = Http->CreateRequest();
    Request->OnProcessRequestComplete().BindUObject(this, &AHttpActor::OnLoginResponse);
    //This is the url on which to process the request
    Request->SetURL(ApiBaseUrl + TEXT("login.php"));
    Request->SetVerb("GET");
    Request->SetHeader(TEXT("User-Agent"), "X-UnrealEngine-Agent");
    Request->SetHeader("Content-Type", TEXT("application/json"));
    Request->SetHeader(TEXT("User-ID"), FGenericPlatformMisc::GetUniqueDeviceId());

    Request->ProcessRequest();
}

    //Create a reader pointer to read the json data
    TSharedRef<TJsonReader<>> Reader = TJsonReaderFactory<>::Create(Response->GetContentAsString());

    //Deserialize the json data given Reader and the actual object to deserialize
    if (FJsonSerializer::Deserialize(Reader, JsonObject))
    {
	//Get the value of the json object by field name
	purchased_game = JsonObject->GetBoolField("purchased_game");
	score = JsonObject->GetIntegerField("score");
	rank = JsonObject->GetIntegerField("rank");
	logged_in = true;
    }
}
void AHttpActor::LoginToServer() {
    TSharedRef<IHttpRequest> Request = Http->CreateRequest();
    Request->OnProcessRequestComplete().BindUObject(this, &AHttpActor::OnLoginResponse);
    //This is the url on which to process the request
    Request->SetURL(ApiBaseUrl + TEXT("login.php"));
    Request->SetVerb("GET");
    Request->SetHeader(TEXT("User-Agent"), "X-UnrealEngine-Agent");
    Request->SetHeader("Content-Type", TEXT("application/json"));
    Request->SetHeader(TEXT("User-ID"), FGenericPlatformMisc::GetUniqueDeviceId());

    Request->ProcessRequest();
}

My code got messed up while posting…
attempt 2.

void AHttpActor::LoginToServer() {
    TSharedRef<IHttpRequest> Request = Http->CreateRequest();
    Request->OnProcessRequestComplete().BindUObject(this, &AHttpActor::OnLoginResponse);
    //This is the url on which to process the request
    Request->SetURL(ApiBaseUrl + TEXT("login.php"));
    Request->SetVerb("GET");
    Request->SetHeader(TEXT("User-Agent"), "X-UnrealEngine-Agent");
    Request->SetHeader("Content-Type", TEXT("application/json"));
    Request->SetHeader(TEXT("User-ID"), FGenericPlatformMisc::GetUniqueDeviceId());

    Request->ProcessRequest();
}


void AHttpActor::OnLoginResponse(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful) 
{

    if (!HttpRequestSuccess = ResponseIsValid(Response, bWasSuccessful)){
	return;
    }

    //Create a pointer to hold the json serialized data
    TSharedPtr<FJsonObject> JsonObject;

    //Create a reader pointer to read the json data
    TSharedRef<TJsonReader<>> Reader = TJsonReaderFactory<>::Create(Response->GetContentAsString());

    //Deserialize the json data given Reader and the actual object to deserialize
    if (FJsonSerializer::Deserialize(Reader, JsonObject))
    {
	//Get the value of the json object by field name
	purchased_game = JsonObject->GetBoolField("purchased_game");
	score = JsonObject->GetIntegerField("score");
	rank = JsonObject->GetIntegerField("rank");
	logged_in = true;
    }
}