Not able to connect to the database

Warning (2): Unknown: open(/var/lib/php/session/sess_ta9io5fjh5iroffeq27qfvtmv3, O_RDWR) failed: No such file or directory (2) [Unknown, line ??]
Warning (2): Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php/session) [Unknown, line ??]