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 ('93b58e6d9f0eddc37b12ab9a6cb999c4', -1, 1758139043, 1758139043, 'd849d814', 13, 0)

Line : 158
File : sessions.php