Arduino Uno + ESP8266 to Cayenne

I am a beginner in this topic and have been trying to connect my Arduino with the cayenne dashboard using an ESP8266 module, the ESP8266 is working and I could connect it to WIFI. However, I cannot access the Cayenne dashboard. I tried through Arduino/Arduino Uno/Arduino ESP8266 Wifi and the code uploads to the Arduino, including the Username/Password and Client ID, but the dashboard does not show up. Also, I tried through All devices/ Generic ESP8266 but the link for the code in Github does not work. Last thing, I have a SCD40, CO2, temperature, and humidity sensor, is it possible to connect it to the dashboard? I would really appreciate some help.

Is there any errors in the debug console?