OK. Look very carefully at the example at https://www.arduino.cc/en/Tutorial/WebClient
From what I can see, try changing:
client.println("HTTP/1.1");
to:
client.print(" HTTP/1.1"); // note first space and print instead of println
Also remove the embedded spaces here and similar:
client.print("&sensor2 = "); // should be "&sensor2="
If it still does not work, post your code here again.