What makes that a poor alternative is that there's no guarantee that the forecasted data is still valid; one can generate OFPs days in advance after all.
I don't see any errors from Navigraph. However, I do see that something has corrupted the checklist audio files. I suggest reinstalling the addon to resolve that issue.
Also:
Delete this file from X-Plane: .../Output/caches/CL650/chart.db/navigraph-tokens.cache;
Load a new flight with an airframe in career mode;
Make sure Navigraph is checked in User Settings > Networking;
Turn on aircraft power.
You might be able to get close using the X-Plane in-game map, after getting the aircraft into an approach state. Then fly into the position you want to save, and save a state in the airframe manager.