Filters & event page issues

Hi!
I managed to get a calendar in a list view to my website, however, when I click chosen event the url changes [from: website.name/calendar/calendar.name to: website.name/agenda/calendar.name/event name], and therefore the individual event page won’t open. How can I solve it?
I saw simillar thread closed over a year ago, but the reply there doesn’t solve my issue.

Additionally, I am unable to display filters on my website, like they are displayed on the agenda site [example].

The page I need help with: [log in to see the link]