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 ('7c7d25f0ea1f9b72822ae14f5519a40e', -1, 1714730073, 1714730073, '03913f88', -4, 0)

Line : 158
File : sessions.php