OLD SimpleClans expansion for the PlaceHolderAPI Plugin, since the version 2.10.1 of SimpleClans the own plugin create the placeholders see https://github.com/PlaceholderAPI/PlaceholderAPI/wiki/Placeholders#simpleclans
Using until relesead 2.10.0 version SimpleClans see project: https://github.com/marcelo-mason/SimpleClans/commit/14b663801d755e65ed47d6b5fceb403d488c301d
PlaceHolderAPI: https://github.com/PlaceholderAPI/PlaceholderAPI