Fixed typo in error message
Fixed typo in error message

lijie371/ManifoldCordova,Boltmade/cordova-plugin-offline-page,lijie371/ManifoldCordova,manifoldjs/ManifoldCordova,manifoldjs/ManifoldCordova,manifoldjs/ManifoldCordova,Boltmade/cordova-plugin-offline-page,lijie371/ManifoldCordova