Unable to create database using MySql

I am trying to create a MySql database. I've been encountering this issue which is beyond my knowledge. I'm new to MySql and this is my first attempt in creating a database. The error I've been encountering is written below. Please help me with this problem.
Error: 1007 SQLSTATE: HY000 (ER_DB_CREATE_EXISTS)
Message: Can't create database '%s'; database exists
