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 ('fee888b0bfbe9d17e7b58b40b97a53b6', -1, 1747668197, 1747668197, '030fdb4e', -4, 0, 0)

Line : 189
File : sessions.php