Illuminate\Http\Request::get(): Argument #1 ($key) must be of type string, null given Laravel Spatie Query Builder

I am using this https://github.com/protonemedia/inertiajs-tables-laravel-query-builder Laravel inertia Vue Js tables in my application. It works flawlessly on my local host but once I push the code to production, I get this error saying that Illuminate\Http\Request::get(): Argument #1 ($key) must be of type string, null given, called in /home/tiptime247/public_html/vendor/spatie/laravel-query-builder/src/QueryBuilderRequest.php on line 144

The code that is being highlighted as having an issue is ->defaultSort('name'):

 $games = QueryBuilder::for(IgslotGame::class)

            ->defaultSort('name')

            ->allowedSorts(['name', 'title', 'categories'])

            ->allowedFilters(['name', 'title', 'categories', $globalSearch])

            ->paginate(5)

            ->withQueryString();

Could someone help me know where the issue is? Thank you.