[Error When Trying To Install]

 

I am getting the following error, I have checked the database login details they are working fine.

MDB2 Error: connect failed 
connect: [Error message: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)] [Native code: 2002] [Native message: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)] 
Installation failed to create the database littleadserver

 

 

[404 error]

Can you help me how to fix this issue? littleurl.in/adserver/ads