I think there is the error in afcs.php file from serverIntegration folder of SDK on line 417.
if (!is_array($nodes))
$nodes = array (
nodes // <------ here is 417 line of afcs.php
);
There should be $ symbol before "nodes" ?
There are another errors in this function, it looks like it is not working.
And there is another one error: I use amfphp on my server and if I don't set $USE_CURL=true in AFCS class, it causes error. Maybe, we need to use curl by default? Has anybode such errors?