Time limit function not working

Hi

I have Norton Family Premier on two android devices: Samsung galaxy S3 and Sony Xperia Z2 Tablet.  Samsung galaxy  working properly. On the Sony Xperia time limit function not working completely.Instalation was performed correctly. I try to reinstall this application. Result - negative. No changes. Could you help me to solve this problem? Sony Xperia Z2Tablet, model SGP511, android version 5.1.1 Norton Family client 3.4.1.21