[eo_fullcalendar] loading… in modal

Hello, Stepnen!

Have a question to you.
I put shortcode [eo_fullcalendar] in uikit modal (https://getuikit.com/docs/modal.html) like

<!-- This is a button toggling the modal -->
<button class="uk-button" data-uk-modal="{target:'#calendar-modal'}">Calendar</button>

<!-- This is the modal -->
<div id="calendar-modal" class="uk-modal">
    <div class="uk-modal-dialog uk-modal-dialog-large">
        <a class="uk-modal-close uk-close"></a>
[eo_fullcalendar]
    </div>
</div>

but when I click button to open modal, the calendar is stacked Loading…

Please, give your advice to fix it.
Thank you!

https://www.ads-software.com/plugins/event-organiser/