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 ('f73c0cbee96a7c76e7c1fcf0820e62d1', -1, 1714260666, 1714260666, '0392ddcc', -4, 0)

Line : 158
File : sessions.php