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 ('3834c5347afa7bf0a1c70e4aafd3a34b', -1, 1714287537, 1714287537, '12769045', -4, 0)

Line : 158
File : sessions.php