We use the form addons from Pagebuilder 3.8.10 on a site with joomla 4.40.
Last days we changed to PHL 8.1 and all forms did not work anymore.
The circle in the send button is runing endless.

Sending the form run on error listed in host protocoll:
2023-11-28 09:06:40 Warning 79.253.147.136 AH01071: Got error 'PHP message: PHP Deprecated: strtolower(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/vhosts/Path_to_pagebuilder/components/com_sppagebuilder/controller.php on line 176', referer: https://site_url/krankmeldung Apache-Fehler
Now I was going back to PHP 8.0 and the forms are working again.
Isn't Pagebuilder 3.8.10 compatible with PHP > 8.0??