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 ('8549ba4d5e4acf1fe8ee654e262937f5', -1, 1749824937, 1749824937, 'd849d8fd', 42, 0, 0)

Line : 190
File : sessions.php