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 ('2d4c5c1d2cf1bc655a09b328ad12a28e', -1, 1719350765, 1719350765, '641ce33f', 19, 0, 0)

Line : 247
File : sessions.php