Any expert to help out on this error code please? "This page isn’t workinglocalhost is currently unable to handle this request. HTTP ERROR 500HTTP ERROR 500"

Great minds, I'm trying to install fleetcart e-commerce php script and each time it keeps showing me "This page isn’t workinglocalhost is currently unable to handle this request. HTTP ERROR 500". I'm using xampp (php v. 8.2.4) on windows. What should i do please? Thanks in advance.

My Apache Error log: [Sat Jan 13 01:22:05.524578 2024] [php:error] [pid 7100:tid 1840] [client ::1:49688] PHP Fatal error: During inheritance of ArrayAccess: Uncaught ErrorException: Return type of Illuminate\Support\Collection::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in C:\xampp\htdocs\fleetcart\vendor\laravel\framework\src\Illuminate\Collections\Collection.php:1459\nStack trace:\n#0 C:\xampp\htdocs\fleetcart\vendor\laravel\framework\src\Illuminate\Collections\Collection.php(13): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(8192, 'Return type of ...', 'C:\\xampp\\htdocs...', 1459)\n#1 C:\xampp\htdocs\fleetcart\vendor\composer\ClassLoader.php(571): include('C:\\xampp\\htdocs...')\n#2 C:\xampp\htdocs\fleetcart\vendor\composer\ClassLoader.php(428): Composer\Autoload\includeFile('C:\\xampp\\htdocs...')\n#3 C:\xamp