jQuery(...).popover is not a function

[Kirill]

Hello,

I'm observing this error message in template Six:

Uncaught TypeError: jQuery(...).popover is not a function
    at HTMLDocument.<anonymous> (scripts.min.js?v=27c652:formatted:6845)
    at l (scripts.min.js?v=27c652:formatted:2166)
    at Object.fireWith [as resolveWith] (scripts.min.js?v=27c652:formatted:2218)
    at Function.ready (scripts.min.js?v=27c652:formatted:2312)
    at HTMLDocument.s (scripts.min.js?v=27c652:formatted:268)

Tried downloading the latest Six template but it didn't help. As a result, language switch stopped working. Any ideas on how to fix it?

Thanks.