American Airlines Virtual

Hello I have the BOGOTA v2 scenery fs9. On the runways I noticed there are road signs in the middle of the runway I researched the problem online and in another website's forum one member had the same issue. However there wasn't any detailed explanation other than to make sure you don't have duplicated skbo bgls in the fs9 scenery. Can someome please help on how to fix this minor issue.
Thank you
Kyle