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 ('c531160e78c22c0f75e1a360b85989ba', -1, 1714610160, 1714610160, '12bf0dff', -9, 0)

Line : 158
File : sessions.php