I never was able to get contact form 7 to work again, even without any type of spam checker. I replaced it with WPForms and all works great now.
“You have reCAPTCHA errors in the browser console” I don’t know what this means. I have tried to correct errors in reCAPTCHA but do not see any errors. This does not explain why a form that has worked for years suddenly quits working. I am the business owner trying to fix this, not a web designer. Please excuse my ignorance. sorry, I need more detail on how to correct the errors. Thanks.