Deprecated en PHP 8.1

Pour info (SPIP 4.1.7 / PHP 8.1.13)

Dans mes logs, en boucle :

PHP Deprecated:  preg_match_all(): Passing null to parameter #2 ($subject) of type string is deprecated in /var/www/html/plugins-dist/textwheel/inc/lien.php on line 936
PHP Deprecated:  preg_match_all(): Passing null to parameter #2 ($subject) of type string is deprecated in /var/www/html/plugins-dist/textwheel/inc/lien.php on line 914
PHP Deprecated:  preg_replace_callback(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /var/www/html/plugins-dist/textwheel/inc/autoliens.php on line 8