Date picker does not work with EasyModal

The datepicker cells do not open the datepicker windows when used with Easy Modal.
Example – click the test link on this page/

P.S. If i also include the form in the page where i put the link to the modal contact 7 form it will work, but that’s not a viable option.

Any hint ?

Thanks,
Mihai

https://ww.wp.xz.cn/plugins/contact-form-7-datepicker/