Try to make Arduino Uno + xbee shield 1.1 + wee wifi serial by Itead work together

uno xbee wee

#include <doxygen.h>
#include <ESP8266.h>



#define SSID        "ssid"
#define PASSWORD    "pass"
#define HOST_NAME   "www.baidu.com"
#define HOST_PORT   (80)

ESP8266 wifi(Serial);

void setup()
{
    Serial.begin(9600);
    Serial.print("setup begin\r\n");

    Serial.print("FW Version: ");
    Serial.println(wifi.getVersion().c_str());
    
    
    if (wifi.setOprToStation()) {
        Serial.print("to station ok\r\n");
    } else {
        Serial.print("to station err\r\n");
    }

    if (wifi.joinAP(SSID, PASSWORD)) {
        Serial.print("Join AP success\r\n");
        Serial.print("IP: ");       
        Serial.println(wifi.getLocalIP().c_str());
    } else {
        Serial.print("Join AP failure\r\n");
    }

      if (wifi.disableMUX()) {
        Serial.print("single ok\r\n");
    } else {
        Serial.print("single err\r\n");
    }
    
    Serial.print("setup end\r\n");

 
    
}

void loop(void)
{
 uint8_t buffer[1024] = {0};

    if (wifi.createTCP(HOST_NAME, HOST_PORT)) {
        Serial.print("create tcp ok\r\n");
    } else {
        Serial.print("create tcp err\r\n");
    }

    char *hello = "GET / HTTP/1.1\r\nHost: www.baidu.com\r\nConnection: close\r\n\r\n";
    wifi.send((const uint8_t*)hello, strlen(hello));

    uint32_t len = wifi.recv(buffer, sizeof(buffer), 10000);
    if (len > 0) {
        Serial.print("Received:[");
        for(uint32_t i = 0; i < len; i++) {
            Serial.print((char)buffer[i]);
        }
        Serial.print("]\r\n");
    }

    if (wifi.releaseTCP()) {
        Serial.print("release tcp ok\r\n");
    } else {
        Serial.print("release tcp err\r\n");
    }
    
    while(1);
  
}

I get this messages:

Join AP success
IP: AT+CIFSR
wrong syntax

ERROR
IP: AT+CIFSR

192.168.1.35
AT+CIPMUX=0
single ok
setup end
AT+CIPSTART="","",80
create tcp err
AT+CIPSEND=58
AT+CIPCLOSE
release tcp err