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 ('c02bf29b72c2d6885bb8b1332e1e34e4', -1, 1713499191, 1713499191, '038dcabb', -2, 0, 0)

Line : 187
File : sessions.php