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 ('c8d16682e7e9c1d906251ebed2b15dfd', -1, 1711642083, 1711642083, '2cc918ab', 3, 0, 0)

Line : 187
File : sessions.php