I have a problem with PHP 8.1 on Joomla 4.3.4.

Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /home/customer/www/eume.upf.org/public_html/components/com_jevents/views/default/helpers/defaultgetstartenddates.php on line 47

Can this be fixed?