Good evening Lauri and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
We are sorry to hear that you are unable to use Location, Organizers and costs on your end.
I would love to help you with this topic.
As a first troubleshooting step, could you please provide us with your complete system information in a private reply using the instructions found in the following link?
https://theeventscalendar.com/knowledgebase/sharing-sys-info/
Additionally, it looks like All in one Event Calendar is in place on your website.
Since this is a competing plugin (not ours), you will most likely need to either deactivate it or adjust the slugs of our calendar to new ones under Events -> Settings -> General for things to work.
Hang in there!
Geoff B.