phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb5_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9bbed265ac8a5ec91bd32b0c8c61789e', -1, 1664049171, 1664049171, '12d0bb80', 2, 0, 0)

Line : 187
File : sessions.php