Menu on mobil version are not correct

Its made hours i try to solve a problem with my menu .
Wen i access on desktop every thing work fine .
But wen i try to access on mobil phone some design are not show and the items on mobil are not correct .
I have try to build a new menu but stay on the same.
Can some one give a help to it please.
Tank you in advance
this is the website in question
https://mastertipster.altervista.org/

Finally i discovery tha is a problem with mobile plugin from altervista

[alemoppo]

The mobile theme removes sidebar and footer.
What are the incorrect items?

Bye!