phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ef51c0cddc486580493dc98c5d77fe23' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('ef51c0cddc486580493dc98c5d77fe23', -1, 1753959168, 1753959168, 'd849d85b', 37, 0)

Line : 180
File : /www/includes/sessions.php