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 ('2c823cca37e3e6b9cf111f5cd6f371ac', -1, 1748026719, 1748026719, '12dffc2b', 39, 0, 0)

Line : 190
File : sessions.php