Deleted events still showing

Hello,
In the wordpress administration I have 30 events that I have translated into Basque, in the list I see a total of 60 events but the problem is that the link to Total Events indicates 65 events in total. I think the difference (those 5) may be events that I have deleted at some point but somehow they are still there.
In the list view in the frontend they do not appear but if I do a search on the frontend, those events appear among the results and when I click on them they take me to a 404 page, page not found.

How can I remove those invalid records?
If I uninstall the plugin and reinstall it, will they disappear?

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