Fix invalid check

launcher/updatedialog_moc.cpp

@@ -96,7 +96,7 @@ void UpdateDialog::loadFromJson(const JsonNode & node)
 	   node["updateType"].getType() != JsonNode::JsonType::DATA_STRING ||
 	   node["version"].getType() != JsonNode::JsonType::DATA_STRING ||
 	   node["changeLog"].getType() != JsonNode::JsonType::DATA_STRING ||
-	   node.getType() != JsonNode::JsonType::DATA_STRUCT) //we need at least one link - other are optional
+	   node["downloadLinks"].getType() != JsonNode::JsonType::DATA_STRUCT) //we need at least one link - other are optional
 	{
 		ui->plainTextEdit->setPlainText("Cannot read JSON from url or incorrect JSON data");
 		return;