Gionee — system ui error

Address:

Kolkata, West Bengal, 700047

Am from kolkata, west bengal, i bought 01 no gionee p7 max (Gold) under imei no - [protected], on 19/09/2017, from eastern logica infoway limited in kolkata, my problem is that whenever heavily using social network group viz whatsapp a popup menu comes on the screen stating that "unfortunately, system ui has been stopped", then after clicking on the send report, it behaves normal and then after 5 minutes again pop up comes, then i go for amigo updates but all efforts are in vein. I send information to gionee representatives online through gionee app, noting has come yet about this issue.

Please solve this issue otherwise set is working normal.