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 ('2475e283f933238f235fb15089e24b14', -1, 1714610364, 1714610364, '039177c7', 20, 0)

Line : 158
File : sessions.php