Menu issue in mobile version.

Hi there.
I have a multilanguage website, and I use WPML plugin, the most popular WordPress plugin which allows running fully multilingual websites with WordPress.
Unfortunately the menu of my website does not shown the languages within the mobile version.
But if I touch the empty space, the languages flags works well.
It seems that the image of flags are not shown. If I use a text (English, Italian, Japanes) the text is shown, but I prefer to show the flags instead of some text.
Please see the screenshots to better understand my poor English
Screenshot 1

Screenshot 2

My website is Guide Dolomiti
may you help me, please?
Thank you!
Enrico

• This topic was modified 9 years by  drunkfox.
• This topic was modified 9 years by  drunkfox.
• This topic was modified 9 years by  drunkfox.
• This topic was modified 9 years by  drunkfox.