Cache is not at the given coordinates. I came up with this while looking at another puzzle.
awrBUSEIIX RAWQ WGR NIED IEW RGFUW BWCWA RBUIO RXervya sb AWRbuseiix greib wgr ir wbi iew iew rbuio ss BIURxik kBUD WGR SBUD IR ASIIQ WGR BU Bx inn KKna
CONGRATULATIONS MEDTEXPLACER FOR FTF!!!