Calendar Create Event

Hello there,
When you try to create an event directly on the calendar, it does not pull the date of the clicked slot. It brings today’s date and in the top heading, we read “Loading…”

How can we fix this? I have installed this crm twice to check whether some bugs would go away, they didn’t.
So, let’s fix it!

Thank you!!

This question was already asked earlier today. I can’t delete it from.