Connection failed: SQLSTATE[HY000] [2003] Can't connect to MySQL server on 'mysql' (113)
SQL/DB Error -- [Error establishing a database connection!
]- Are you sure you have the correct user/password?
- Are you sure that you have typed the correct hostname?
- Are you sure that the database server is running?
SQL/DB Error -- [Error selecting database extension_inv!
]- Are you sure it exists?
- Are you sure there is a valid database connection?