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 ('57e7b9e18388f1300d5946d90557bc09', -1, 1748107853, 1748107853, '0315ab6b', 5, 0, 0)

Line : 190
File : sessions.php