Laravel filament pagination and sorting showing blank page

When working with Laravel Filament and encountering issues with pagination and sorting, it's essential to check several aspects to identify the root cause of the problem. Here's a comprehensive and detailed answer to help you troubleshoot and resolve the blank page issue.

Check your Filament installation: Make sure you have installed Filament correctly by following the official documentation. You can check your installation by running the following command in your terminal:
```
php artisan filament:serve
```
If the installation is successful, you should see the Filament dashboard at http://localhost:8000.
Verify your database connection: Ensure that your Laravel application is connected to the database correctly. You can check your database connection by adding the following lines to the .env file:
```
DB_DATABASE=your_database_name
DB_USERNAME=your_database_username
DB_PASSWORD=your_database_password
```
Then, run the following command to configure your database:
```
php artisan config:cache
```

Check your Filament resource file: Ensure that you have created a Filament resource file for the model you're trying to paginate and sort. For example, if you're working with a User model, create a UserResource file in the app/Filament/Resources/Models directory.

namespace App\Filament\Resources\Models;

use Filament\Resources\ModelResource;
use App\Models\User;

class UserResource extends ModelResource
{
    protected static string $model = User::class;

    protected function getTableColumns(): array
    {
        return [
            'id',
            'name',
            'email',
            // Add other columns as needed
        ];
    }
}

Check your Filament Grid component: Ensure that you have implemented the Filament Grid component correctly in your resource file. For example, if you're working with a User model, add the following lines to the UserResource file:
```
protected function getGridColumns(): array
{
    return [
        TextColumn::make('id'),
        TextColumn::make('name'),
        TextColumn::make('email'),
        // Add other columns as needed
    ];
}
```
Check your Filament table query: Ensure that you have defined the table query correctly in your resource file. For example, if you're working with a User model, add the following lines to the UserResource file:
```
protected function getTableQuery(): string
{
    return User::query()->orderBy('id', 'desc');
}
```
Check your Filament table pagination: Ensure that you have implemented the Filament table pagination correctly in your resource file. For example, if you're working with a User model, add the following lines to the UserResource file:
```
protected function getTableRowsPerPage(): int
{
    return 10; // Set the number of rows per page
}
```
Check your Filament table sorting: Ensure that you have implemented the Filament table sorting correctly in your resource file. For example, if you're working with a User model, add the following lines to the UserResource file:
```
protected function getTableSorting(): array
{
    return [
        'id',
        'name',
        'email',
        // Add other columns as needed
    ];
}
```
Clear your Laravel cache: Sometimes, clearing the Laravel cache can help resolve issues with Filament pagination and sorting. Run the following command to clear the cache:
```
php artisan cache:clear
```
Check your Laravel logs: If none of the above steps resolve the issue, check your Laravel logs for any errors or warnings. You can view the logs by running the following command:
```
php artisan tinker
\Illuminate\Foundation\Console\Kernel::info(Storage::disk('logs')->files('laravel.log'));
```
This command will display the contents of the laravel.log file, which should help you identify any issues.

By following these steps, you should be able to identify and resolve the blank page issue with Laravel Filament pagination and sorting.