Help to read html code

[peyoe]

Hello friends.
I try several times to read active power from my wibeee power meter trough the web page.
I use the example on https://forum.logicmachine.net/showthread.php?tid=712 
and on https://openrb.com/read-plugwise-smile-p...-requests/

But I can not do it, I do not have any ressult.

This is the url I use: http://192.168.1.238/en/phase1.html
And this is a screen capture how html is:


Can someone help with the script?
Thanks and greetings.

PD: Sorry about my english