AAAH on "Word Press does not allow WPPA plus ftp uploading command to be modified"

I tried many times and reloading the plugin and still the same problem:

Command: PWD
Response: 257 "/home/wp-content" is current directory.
Command: SITE CHMOD 755 uploads
Response: 500 'SITE CHMOD 755 uploads': command not understood

Command: CWD /home/wp-content/plugins/wp-photo-album-plus
Response: 250 CWD command successful.
Command: SITE CHMOD 755 wppa-htaccess.php
Response: 500 'SITE CHMOD 755 wppa-htaccess.php': command not understood

Response: 500 'SITE CHMOD 755 wppa-htaccess.php': command not understood
Status: Set permissions of '/home/wp-content/plugins/wp-photo-album-plus/wppa-htaccess.php' to '777'
Command: SITE CHMOD 777 wppa-htaccess.php
Response: 500 'SITE CHMOD 777 wppa-htaccess.php': command not understood