Form Post results in 404 Not Found [duplicate]

I figured it out. Turns out that using the field name was the culprit. It appears that name and other field names like attachment, attachment_id, etc will cause WordPress to produce a 404 error. There’s a whole list of reserved terms in the Codex.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)