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 ('c4429504538f063b8090b2f3b15772da', -1, 1713600473, 1713600473, '038e626c', -10, 0, 0)

Line : 187
File : sessions.php