Polylang homepage not an AMP

Hi developers!

First of all, thank you for your awesome plugin.
But i get an error: not an AMP page on my website homepage.

The thing is I use polylang to translate my website to three languages and it has it’s urls like:
https://domain.com/?amp
https://domain.com/en/?amp
https://domain.com/de/?amp

So the thing is that it get’s redirect to https://domain.com/en?amp and return the language page with language name in title.

Seems I’m not using some extra plugins that could affect on this and it seems to be a problem with compatibility with this plugin.
Could it be?

Thanks.