Hi can anyone tell me what this error is due to I moved the site from one server to another all was working okish now get this error on all pages plus can't login to dashboard any help would be most appreciated

Cheers

Warning: Unknown: open(/var/lib/php/session/sess_ec98fan9kra9pviqt4nke7j240, O_RDWR) failed: Permission denied (13) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php/session) in Unknown on line 0