I downloaded the 3.1.1 wallet, POS is not running! 
Hello,u must wait 24 hours before POS takes effect to ur coins
Open your wallet,unlock it ( if its locked by pass phrase) and wait it will ok after the maturing period
have a nice day and welcome
Peace
Thank you so much for your help.
Here we are all friends to help each other because we are
SUPER COMMUNITY
