Cotton candy live is not the latest version, re-download the latest version, please check your network, make sure they are in wifi or 4G smooth network environment in order to normal use of cotton candy live, it may be that your cell phone does not have the memory space, please use your phone's own software to clean up the phone's memory will be able to normal use of cotton candy live! ... Maybe your phone comes with a blocking system to block the marshmallow live, in the "Settings" to allow the use of the finished.