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, session_admin) VALUES ('ccbd69e88c19c7d37e8c48536bc32988', -1, 1751161921, 1751161921, 'd849d844', -7, 0, 0)

Line : 190
File : sessions.php