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 ('2e805eb54fd1f6f1d49e23af9eca2d6b', -1, 1713295184, 1713295184, '1275c4d9', -4, 0, 0)

Line : 187
File : sessions.php