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 ('a62710b17f35ce790b2dcbfc0d99482b', -1, 1752668394, 1752668394, 'd849d847', 42, 0, 0)

Line : 190
File : sessions.php