phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO pinball_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('05fb78d2a18a813d5e89ce07a3c0917c', -1, 1669738305, 1669738305, '12e83809', 3, 0, '0', '0')

Line : 175
File : sessions.php