I kept searching and the deactivation of reputation based Recaptcha solved the problem temporarily. I still need recaptcha, I hope the problem can have a better solution.
What other plugins and theme do you use on the site?
Advanced CF7 DB, Conditional Fields for Contact Form 7, Contact Form 7 – Dynamic Text Extension, Contact Form 7 – Repeatable Fields, CookieYes | GDPR Cookie Consent, Data Source for Contact Form 7, Easy Charts, Listo, Multi Step for Contact Form 7 (Lite), Really Simple SSL, Send PDF for Contact Form 7, Shortcodes Ultimate, Ultimate Member, Wordfence Security, WP Mail SMTP, Yoast SEO. I deactivated Litespeed Cache.
I return to my previous problem with new information. It seems the Recaptcha v3 conflicts in some way with the Listo plugin. I thought it was because my Listo plugin remained un-updated for a while, but nothing changed after the update. The attempt to activate recaptcha results in a fatal “uncaught error” at the following address: contact-form-7/modules/listo.php line 17 while calling “member function called locale() on null”