Bummer. Seeing the same error on Mavericks when triggering the macro. PHP 5.4.17, Alfred 2.1.1:
12/4/13 5:55:17.479 PM Alfred 2[378]: [ERROR] Script XML Parse Error occured Error Domain=NSXMLParserErrorDomain Code=4 "The operation couldn’t be completed. (NSXMLParserErrorDomain error 4.)" UserInfo=0x60000027f500 {NSXMLParserErrorColumn=1, NSXMLParserErrorLineNumber=1, NSXMLParserErrorMessage=Document is empty
}