This is a message telling you that a block or reference has been placed on top of another. It can be found easily using Find Coordinates. Please inform us if this is actually a real problem.
--Scanning drawing 1160300-Segments et spares FC 62 input 0 and FC 62 input 6 overlaid at 2500,1640.
This is a set of spare blocks that triggered an interesting message, worth a second look.
This error can be built directly into Hyperview. For more information, see the article Building error reports into the M14.