Model Doesn't found in controller

I made model named cover. Even used in on the controller. But cant found by laravel. I am confused and don't know what to do..

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use app\Models\Cover;

class CoverController extends Controller
{
    public function store(Request $request) {
        $request->validate([
            'cover_image' => 'required|image|mimes:jpeg,png,jpg,gif,svg|max:2048',
        ]);

        $cover = new Cover();
        $imageName = time().'.'.$request->cover_image->extension();
        $request->cover_image->move(public_path('uploads/cover'), $imageName);

        $cover->user_id = Auth::user()->id;
        $cover->path = $imageName;

        return redirect('/dashboard')->with('msg','You have successfully upload image.');
    }
}

model

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Cover extends Model
{
    use HasFactory;

    protected $fillable = [
        'image', 'user_id',
    ];

    public function user()
    {
        return $this->belongsTo(User::class);
    }
}