Period date is missing which is actually the most essential part of the event. It shows the exact duration of the event and it should be present on the article, all your pages concerning .*/events/.* path does not solve these issues.
Probably, because your template considering this date as published_date and thus it can not properly reformat it as there are 2 dates. However, it is not published_date, it is duration of the event.

Look at my template:
https://instantview.telegram.org/contest/egovernment.uz/template55/?url=http%3A%2F%2Fegovernment.uz%2Fru%2Fpress_center%2Fevents%2Fpriglashaem-vas-prinyat-uchastie-v-khakatone%2F