@Juraj
The amount of time I had to back to factory setting on that particular shield was a joke.
Also spent an extra ordinary amount of time talking to the devs for that board only to be told it was not suitable for how it was designed.
As for support on the web there are about 4 links that take some digging to find.
I went on to start using other ESP's more so the Node type boards which I find very reliable and easy to use.
Have about 8 more projects to do before I get back to ESP's
For simple sensore the super cheap ESP's are
Almost any other ESP but that one although if you power it as a standalone board it would probably do what you need. Otherwise NodeMCU ESP's are cheap and easy to use in a much nicer package.