Integration witp Polylang

Hi,

I bought your plugin few days ago and we seems to have a problem with integration with Polylang. The problem is that sometimes the Country switcher doesn’t work, but the biggest problem is the checkout where the page reloads continuosly and you can’t get through it (it’s the step where you put your address details).
Here is the link to the test site: http://rury-plexi.server2.todes.pl/de
Have you had a problem like this?

Regards,
Szymon