Shortcode generator hangs

Hi!
I have just started to use Unicon and when I now for the first time tried to use the Shortcode Generator button (Minti Shortcodes – VC in classic mode). It hangs with a spinning progress bar in the middle of a grayed/disabled window. This happens just after selecting the element wanted from the dropdown list. The only way to quit is to reload the page. The result in no shortcode inserted. This behavior has been reproduced in Firefox, Chrome and Edge.
What todo?

Does anyone have a list of the shorcodes behind this button?

Regards,
LJA

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