Events Manager 6.0 Problems

The new version of Events Manager 6.0 gives a lot of problems on my site both on the calendar and on the search for events or places.
For I would like to solve this serious problem as soon as possible. It is very important for the state of the current site that it does not allow its good use.
Do you think I could go back to the previous events manager version to fix it right away?

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