Hi,

If you have PHP 8.4 or PHP 8.3 - set PHP 8.2 or PHP 8.1 and test site again.

OK, site is working again.

No Errors.

Problem on front-end was caused also by that file:

/templates/shaper_qubic/sppagebuilder/addons/ajax_contact/site.php

I removed it, and now Joomla use current version of it from component folder, and all works.

I disabled and re-enabled the captcha-recaptcha plugin and it works. This solution was proposed in joomla official forum, as incompatibility with sp page builder. Hope it will help for a future update of the component.

Yes, I also read that tip. But you did it faster :]

In SPPB you can use:

1. ReCaptcha
2. HCaptcha: https://www.joomshaper.com/documentation/sp-page-builder/configuring-hcaptcha
3. CloudFlare Captcha: https://www.joomshaper.com/documentation/sp-page-builder/configuring-cloudflare-turnstile-captcha

But I also recommend installing plugin Spambot Check (from vi-solutions)

I will give a try to these captcha options. Thank you!

Read also the last section here (about Form Builder addon): https://www.joomshaper.com/documentation/sp-page-builder/form-builder#enable-rate-limit