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 ('088cc6d910ca8834f5f1186b7c79946f', -1, 1713485269, 1713485269, '03929863', 2, 0, 0)

Line : 187
File : sessions.php