Hello, I am doing a clean install on php 8.2 and apache 24. I am getting this error now

Fatal error: Uncaught Error: Call to undefined function IPS\mb_internal_encoding() in C:\xampp\htdocs\TheTechnologyStudio.com\forums\init.php:558 Stack trace: #0 C:\xampp\htdocs\TheTechnologyStudio.com\forums\init.php(1603): IPS\IPS::init() #1 C:\xampp\htdocs\TheTechnologyStudio.com\forums\admin\install\index.php(13): require_once('C:\\xampp\\htdocs...') #2 {main} thrown in C:\xampp\htdocs\TheTechnologyStudio.com\forums\init.php on line 558

PHP 8.2 isn’t supported. Use 8.0.X or 8.1.X.

In addition to the above, you were missing the mbstring PHP extension, which is required for the software