The search bar doesn’t work

Hello good, I have tried to use the plugin with the short code that appears on this page, and there is no way that it works, it always says that events are not achieved.

https://demo.myeventon.com/search/

I would like to use it, can you help me, if you need any other configuration? On the other hand, is it possible that the search field + the filters can be used without being separated by months, but instead the complete result is output?

Thank you. I look forward to your help.

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