Import Listings not working again

Hey, guys! I hope you can help me with the same issue described earlier here and – https://wpgeodirectory.com/support/topic/import-button-not-working/

My problem is that I’m trying to export all Geodirectory listings and categories from production server and upload to staging server where new website is stored.
I’ve managed to export both .csv files from live site, but import buttons (whatever the settings – with post_ID overwrite or not), input fields are inactive (doesn’t do anything when clicked). I don’t get any notifications in browser and Chrome DevTools console doesn’t show any errors.

I read that caching could be the problem, but I don’t run caching plugins on development server and server caching is disabled. Also WP and plugin is updated for latest version. I’ve tried incognito mode, different browsers, disabling Chrome extensions – you name it.
I’ve tried everything that I can think of this far, but I haven’t been successful. Maybe someone can help me out?

Thanks, but I’ve tried hard refresh, clearing cookies and cached files several times. Unfortunately doesn’t help.

As suggested before I’ve created new topic for my issue – https://wpgeodirectory.com/support/topic/import-button-and-input-field-not-working/