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) VALUES ('32176925d04f22dae7da8c5fb8c0cdec', -1, 1714135431, 1714135431, '0316f99e', 20, 0)

Line : 158
File : sessions.php