Depiction attempts to use free data sources in order to keep the cost of our product as low as possible.  On occasion these sources stop providing the service or change how you access them.  A few years back we lost the topographical map source. Recently 3 of the imagery background tiling sources have stopped working.  The only one that is still working is the MapQuest imagery tiler.  We are attempting to resolve this and hope to have them restored or removed from the list.