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 ('42d395865785c30c9528b940c31d087e', -1, 1713530897, 1713530897, '127476c6', -7, 0, 0)

Line : 187
File : sessions.php