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) VALUES ('b6a85de7f3b46f8a8df3a4e7951c4be3', -1, 1713982773, 1713982773, '0316b5d1', 20, 0)

Line : 158
File : sessions.php