452 FTP Reply Code - KB Article #1524Related Articles --
452 Requested action not taken; insufficient storage space.
A 452 reply code may be given in response to any command requiring the server to store transferred data it receives from the client (a file upload). It is a transient negative reply as the error is considered a temporary one. It is usually sent because the server does not have storage space to save the received data. In this case, the client is encouraged to restart the FTP transaction and try again.