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 ('0baf752f4cfb4c1d4bf0c1de2dda07e5', -1, 1601418050, 1601418050, '03eafa18', 0, 0, 0)

Line : 189
File : sessions.php