Pico and ESP8266

Hello friends. I have a problem with

Uncaught No 'ready' after AT+RST
 at line 2 col 18
  if (err) throw err;

Serial2.setup(115200, { rx: A3, tx : A2 });
var wifi = require("ESP8266WiFi_0v25").connect(Serial2, function(err) {
  if (err) throw err;
  wifi.reset(function(err) {
    if (err) throw err;
    console.log("Connecting to WiFi");
    wifi.connect("WiFi_Name","WPA2_Key", function(err) {
      if (err) throw err;
      console.log("Connected");
      // Now you can do something, like an HTTP request
      require("http").get("http://www.pur3.co.uk/hello.txt", function(res) {
        console.log("Response: ",res);
        res.on('data', function(d) {
          console.log("--->"+d);
        });
      });
    });
  });
});

When I was testing baud rates, only reasonable output was:

AT+GMR\r\r\nAT version:0.21.0.0\r\nSDK version:0.9.5\r\n\r\nOK\r\n

What am I doing wrong? Red light is on. When I removed the "if(err) throw err;" the script continues and Blue light is sometimes blinking (when trying to connect)