Hi Jamila!
Thanks for reaching out to us!
This is our Pre-sales forum. If you have an active license for one of our plugins, please log into your account and post to our Help Desk to get premium support.
Otherwise, you can post to our free plugin forum > https://wordpress.org/support/plugin/the-events-calendar, though we only monitor those on a weekly basis.
The issue you are having is mostly sure because there is a plugin that adds extra columns to the admin table. You can hide/show these columns by clicking the “Screen Options” tab in the top right corner of the screen.
Hope that helps 🙂
Best,
Victor