no datepicker

Your theme is causing the layout to be rendered before the full page is loaded:

Layout was forced before the page was fully loaded. If stylesheets are not yet loaded this may cause a flash of unstyled content.

Try using the default theme first.

Maybe another reason: EMEFS uses the openstreetmap api (and thus loads some javascript files to do so). There might be an issue (I need to test this) if you have disabled the map-option in EMEFS. Can you tell me the value of that option?

Option “Enable Maps integration?” on /wp-admin/options-general.php?page=emefs is OFF

Well, I tested that and indeed that caused the problem, so I already fixed it and released a new version.

I have same error on page. See: https://jurvrn.ru/my-events-list/.
But I can made even by the bottom not error. See https://jurvrn.ru/#add-even

@jurvrn : sorry, but your site is unclear to me (I don’t speak Russian) and I don’t have access to add new events.

@liedekef, for access to site user/password – tester/tester123
go links https://jurvrn.ru/my-events-list/ (no good)
You will see no datepicker оn click by Date and Time (shortcode in page)
https://jurvrn.ru/#add-even – datepicker is present (shortcode in button)

Datepicker appears again sincelast update, thank you.
(“Changelog
1.0.56 (2020/09/24)
– Correct JS error if the map integration is disabled”)

@jurvrn : please try this change:
https://plugins.trac.www.ads-software.com/changeset/2390534/

@liedekef, I replaced the existing file with a new file, but the problem didn’t resolve – datepicker is not displayed (look at https://i.ibb.co/cvDGHv3/bad.jpg)
But by shortcode on botton datepicker is displayed: https://i.ibb.co/xzHwSD0/okey.jpg

@jurvrn : then some other plugin is blocking/conflicting with emefs in that specific case. You should try to disable all other plugins and enable one by one until you find the conflicting plugin. Also, check using the default theme.