phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78f135221638a02fb1fc559d89d93657' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('78f135221638a02fb1fc559d89d93657', -1, 1770042423, 1770042423, 'd849d8a9', 2, 0)

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