Language selection only shown in main page

Hi,

I’ve used your plugin in this page: https://www.tempotourismservices.com, and changed the flags for another image.
But the buttons to change language are only shown in the main page.
How can I fix that?

And the menu bar only shows a few translated options, not all.

And how can I make a single text line to appear in the right language?
Check this page https://www.tempotourismservices.com/?s=&post_type=listing&et-listing-type=none&et-listing-location=none&et-listing-rating=none

I want to make the footer phrase change as I switch languages.

Thanks for your help and for your great job!

Best wishes,
Salva

https://www.ads-software.com/plugins/012-ps-multi-languages/