phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('37cf182a4e3b5414e5bd33a0e7d2c157', -1, 1713288033, 1713288033, '0391bfd6', 6, 0, 0)

Line : 187
File : sessions.php