how can fix this error 'Class 'App\category' not found'

hi i upload a laravel project in linux host..in cpanel but website didn't load and give this error

Class 'App\category' not found (View: /home/archir/8arch/resources/views/welcome.blade.php)

this is wrong because there is app\category and it work in localhost..but in orginal host i receive this error.

this is a part of my codes in welcome page

         <?php

$category=\App\category::with('parent')->where('parent_id',0)->orderBy('select','asc')->get();


           ?>
            <!-- .Side Nav -->
            <nav class="side-nav">
                <ul class="navigation clearfix" id="nav">
                   @foreach($category as $cat)
                    <li class="@if(isset($cat->parent)) dropdown @else  @endif"><a href=""></a>
                        @if(isset($cat->parent))

                        <ul>
                            @foreach($cat->parent as $subcat)
                            <li><a href=""></a></li>
                            @endforeach
                        </ul>

                        @endif
                    </li>
                   @endforeach
                </ul>
            </nav><!-- /.Side-menu -->

please help me a customer want this website in saturday

via Chebli Mohamed