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 ('6bf9d8f5d32c06b1ae9e837fab031da9', -1, 1713869067, 1713869067, '03886140', -4, 0, 0)

Line : 187
File : sessions.php