Date edit has crashed site and we're unable to access the home page

Hello,

This has happened with our site before - one of our members went in to edit the date on our home page and the site now is inaccessible in Chrome, FF, and Edge.
He's editing on Windows, Chrome version 89, but noted that he experienced this in version 87 as well. I believe the last time this happened there as a non-standard quote in the site name. That was fixed, and we were good for a while.
Assistance is greatly appreciated. Thank you!

7051210.toastmastersclubs.org/

Faith

Faith

Changing just a date will not cause an error what else did they do and how did they do it.

That's all he did - change March to April and 16th to 13th.

I reset the banner text and your site comes up now.

7051210.toastmastersclubs.org/

Thank you. Can you help us understand what is happening here so we can avoid this issue? It seems that the name was the issue the first time. We've made edits since then with no problems. Are we locked in to displaying the club number rather than the name?

Thanks.

If you are copy and pasting, don't. Just type the date.
Something more was changed than just the date on the page, we can't fix 12,000 websites best we can do is clear errors.