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 ('073f9e64d5cb2d9426782a54c3e69364', -1, 1713565883, 1713565883, '0389dda3', -4, 0, 0)

Line : 187
File : sessions.php