Board Thread:General Discussion/@comment-120.58.187.121-20140424102555/@comment-24858882-20140425042401

try uninstall and install the apk, or try reboot ur phone, if still doesn't work, try re-install apk from other sources like 1mobile; then you u might want to factory reset if still not working... if everything fails, then, like swordslasherx said, u might want to contact nubee to check with them...