I'm trying to restore a site from a snapshot. Message "Invalid backup" is shown in GUI and the following error appears in the log:
2014-01-29T16:52:30-05:00 [EMERG] /sitebuilder/JsonApi/ SB_Site_Snapshot_Exception: invalidSnapshot file: /usr/local/sb/include/SB/Site/Snapshot.php
Snapshot is invalid. Site restoration from this snapshot is not possible.
Please find another valid snapshot and restore your site from it.