teraviva

Hello, I press connect button and get “Unable to connect your WordPress.com account. Please try again later.” and no clue to what account and how to check it. In the other tab I logged in the wordpress.com but that has no effect.

The admin user has not the same email as the WordPress user. Could it be the case? Should I create admin user with same email to make it work? Or there is the only way is to set the main administrator email same as WordPress.com user email?

Check if you set all languages, set proper position of language in url.
Try to resave the page and change some strings in different languages.
If you want different pages for all languages – at the side there is menu with checkboxes to show page only for special language. But don’t sure it will work with homepage. What’s wrong with changing content for same page in different languages?

Indeed, when plugin is active,threre are no changes happened on save, it is just remain empty or shows the price, which was before.
AND no difference, is it a simple product or othe type.
BUT, you can edit the price. Choose the PRoduct pack – and there will be the field with the price, edit it and save. After that you can change the type to the other (simple) again.
In some way that field with price replaces values from others.