Help resolvinging scenario failed to load error

I started up Placer Mining Ore pt1 on the Cimarron Pacific and I get this message:
Is this something I can fix in the editor or do I need to reinstall the route?
Driver ' Baldy Branch Stamp Mill Run' at Lat 35.57009 Long -105.11490 - Missing Marker - (s) Siding2
Is this something I can fix in the editor or do I need to reinstall the route?