class.plesk_sitebuilder.php

[GastonWagner]

Hi

New versions for your plugins are available. Go to auto-upgrade for details.

click and see:
Last checked: 07/11/2014 10:23:04
....
New plugin versions found:
Plesk Sitebuilder (class.plesk_sitebuilder.php) - local version: 1.6.3.7, new version: 1.6.3.0.7

click upgrade and see:

Upgrade: failed
Unable to extract archive file /var/www/html/hosting_plesk_latest.zip

Now what?

Please help

Regards