old website still showing up

If I’m logged onto my wordpress site and visit my website (and I see the bar on top that tells me howdy), I see the website that is current- the one that all my settings and menu and pages are set to; however, if I’m not logged on, I see my website from a few weeks ago. Such as there’s a contact form widget in the footer and my slider is displaying past items and my menu options are different.

Any clue on why this is? How to fix it?

https://www.breastdiagnostic.com/