Fix game crash when you try to load a save that doesn't exist (e.g. using Ctrl + F9 to load your autosave)

Author: garethyr

Managers/ActivityMan.cpp

@@ -150,9 +150,9 @@ namespace RTE {
 		std::unique_ptr<Scene> scene(std::make_unique<Scene>());
 		std::unique_ptr<GAScripted> activity(std::make_unique<GAScripted>());
 
-		Reader reader(g_PresetMan.GetFullModulePath(c_UserScriptedSavesModuleName) + "/" + fileName + ".ini", true, nullptr, false);
+		Reader reader(g_PresetMan.GetFullModulePath(c_UserScriptedSavesModuleName) + "/" + fileName + ".ini", true, nullptr, true);
 		if (!reader.ReaderOK()) {
-			g_ConsoleMan.PrintString("ERROR: Game loading failed! Make sure you have a saved game called \"" + fileName + "\"");
+			RTEError::ShowMessageBox("ERROR: Game loading failed! Make sure you have a saved game called \"" + fileName + "\"");
 			return false;
 		}