Too Many Redirects? What does that mean?

My website has been up and running for nearly a year with no problems. Just the other day, however, I noticed that one of my pages gets this message:

The webpage at https://christinabaglivitinglof.com/about/ has resulted in too many redirects. Clearing your cookies for this site or allowing third-party cookies may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer.

Could someone kindly explain exactly what this means? I’d love to learn and understand what’s happening. And could you please tell me in lay-man’s terms as I’m not great with understanding the “lingo.” Finally, how can I get my page back? I’ve read other recommendations, and frankly, the advice goes over my head!

Can someone help this old lady? THANK YOU.