No Exchange Response Handled

PoloniexAPIClient.js

@@ -415,6 +415,14 @@
                     if (FULL_LOG === true) { logger.write(MODULE_NAME, "[INFO] analizeResponse -> exchangeErr = " + stringExchangeErr); }
                     if (LOG_FILE_CONTENT === true) { logger.write(MODULE_NAME, "[INFO] analizeResponse -> exchangeResponse = " + stringExchangeResponse); }
 
+                    if (stringExchangeResponse === undefined) {
+
+                        logger.write(MODULE_NAME, "[WARN] analizeResponse -> No response received from the exchange. Retrying Later.");
+
+                        notOkCallBack(global.DEFAULT_RETRY_RESPONSE);
+                        return;
+                    }
+
                     if (stringExchangeErr.indexOf("ETIMEDOUT") > 0 ||
                         stringExchangeErr.indexOf("ENOTFOUND") > 0 ||
                         stringExchangeErr.indexOf("ECONNREFUSED") > 0 ||