I need help for my messaging app

I have made a messaging app with email and otp login through firebase but i am having some problems in the apps. When I click invite button contact list is showing but the names are not showing, kindly help me how to show name also, i used leo contact list . Second when i clicking the contact to chat, the chat screen open and a message appearing bad value, kindly help me in this.

Kindly help me out

A post was merged into an existing topic: Colintree Listview: my chat is not storing