Fatale PHP join(): Argument #2 ($array) must be of type ?array, string given

SPIP 4.2 / PHP 8.1

Erreur d’exécution ../plugins/auto/autorite/v2.0.0/formulaires/configurer_autorite.html | File […]/ecrire/public/composer.php(94) : eval()'d code Line 53 : join(): Argument #2 ($array) must be of type ?array, string given