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 ('df17850c09437efdf84c6ee1d0fd8d6f', -1, 1714372343, 1714372343, '0d3a2717', -2, 0)

Line : 158
File : sessions.php