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 ('f8ed19b11c0b1c1f030ce62c511e1433', -1, 1714615954, 1714615954, '0395fc25', -9, 0)

Line : 158
File : sessions.php