php - Non-static method Redis::get() cannot be called statically in laravel 5.4? -

i working on redis store data working fine in local system. have installed redis in laravel command composer require predis/predis , redis setup of window installed. when store data in redis this:-

redis::set('first',"my first test"); // put data in redis key echo redis ::get('first'); // data 

above code working fine in local system. when try use code in live server showing below error:- please me resolve issue. using amazon-ec2 server in advance :)