SQL Error in includes/sessions.php on line 288

INSERT INTO onride_sessions
			(session_id, session_user_id, session_start, session_time, session_ip, session_page, session_more, session_logged_in, session_admin)
			VALUES ('218d630bb122f3060dcafe2cef4586ba', -1, 1777721008, 1777721008, 'd849d850', 23, 13, 0, 0)

1062 - Duplicate entry \'218d630bb122f3060dcafe2cef4586ba\' for key \'PRIMARY\'