Error with PHP 8.2

[FabienYt]

I just updated Kirby (v3.9.0) and PHP (v8.2.1)

I have an error:

Twig\Error\RuntimeError
Line xx of /xxx/layout.twig

An exception has been thrown during the rendering of a template ("mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead").

I use the latest version of the plugin (v4.2.3)