diff --git a/app/Http/Controllers/Api/ExcelController.php b/app/Http/Controllers/Api/ExcelController.php
index 5668a7f..3d8d36d 100644
--- a/app/Http/Controllers/Api/ExcelController.php
+++ b/app/Http/Controllers/Api/ExcelController.php
@@ -175,6 +175,9 @@ class ExcelController extends Controller
                     $tax[$item->tax] = 0;
                     $gross[$item->tax] = 0;
                 }
+                if ($invoice->sum == 0) {
+                    continue;
+                }
                 $net[$item->tax] += $item->amount * $item->price * $payment->paid_amount / $invoice->sum;
                 $tax[$item->tax] += $item->amount * $item->price * $item->tax * $payment->paid_amount / ($invoice->sum * 100);
                 $gross[$item->tax] += $item->total * $payment->paid_amount / ($invoice->sum);
@@ -184,9 +187,9 @@ class ExcelController extends Controller
             $worksheet->setCellValue('B' . $row, $invoice->customer->name);
             $worksheet->setCellValue('C' . $row, $invoice->address->name);
             $worksheet->getCell('D' . $row)->getStyle()->getNumberFormat()->setFormatCode($this->currencyMask);
-            $worksheet->setCellValue('D' . $row, ($invoice->sum - $invoice->tax) / ($invoice->sum / $payment->paid_amount));
+            $worksheet->setCellValue('D' . $row, ($invoice->sum != 0 && $payment->paid_amount != 0) ? (($invoice->sum - $invoice->tax) / ($invoice->sum / $payment->paid_amount)) : 0);
             $worksheet->getCell('E' . $row)->getStyle()->getNumberFormat()->setFormatCode($this->currencyMask);
-            $worksheet->setCellValue('E' . $row, $invoice->tax / ($invoice->sum / $payment->paid_amount));
+            $worksheet->setCellValue('E' . $row, ($invoice->sum != 0 && $payment->paid_amount != 0) ? ($invoice->tax / ($invoice->sum / $payment->paid_amount)) : 0);
             $worksheet->getCell('F' . $row)->getStyle()->getNumberFormat()->setFormatCode($this->currencyMask);
             $worksheet->setCellValue('F' . $row, $payment->paid_amount);
             $worksheet->setCellValue('G' . $row, Date::PHPToExcel(\DateTime::createFromFormat('!Y-m-d', $payment->payment_date)));
diff --git a/app/Http/Controllers/Api/OptionController.php b/app/Http/Controllers/Api/OptionController.php
index fc4e403..3846348 100644
--- a/app/Http/Controllers/Api/OptionController.php
+++ b/app/Http/Controllers/Api/OptionController.php
@@ -28,6 +28,11 @@ class OptionController extends Controller
             $option->value = $value;
             $option->save();
         }
+
+        $arr = explode(';base64,', $request->company_logo);
+        $type = substr($arr[0], strpos($arr[0], '/') + 1);
+        file_put_contents(base_path('/public/storage/company_logo.'. $type), base64_decode($arr[1]));
+
         return response()->json($request->all());
     }
 }
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index 0efd374..fed420c 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -2,6 +2,7 @@
 
 namespace App\Providers;
 
+use App\View\Composers\OptionLogo;
 use App\View\Composers\TaxDropdown;
 use Illuminate\Support\Facades\URL;
 use Illuminate\Support\Facades\View;
@@ -34,6 +35,7 @@ class AppServiceProvider extends ServiceProvider
     public function boot(): void
     {
         View::composer('components.tax-dropdown', TaxDropdown::class);
+        View::composer('components.company-logo', OptionLogo::class);
         Number::useLocale(config('app.locale'));
         Number::useCurrency(config('app.currency'));
 
diff --git a/app/View/Composers/OptionLogo.php b/app/View/Composers/OptionLogo.php
new file mode 100644
index 0000000..c1830f7
--- /dev/null
+++ b/app/View/Composers/OptionLogo.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\View\Composers;
+
+use App\Models\Option;
+use Illuminate\View\View;
+
+class OptionLogo
+{
+    public function compose(View $view): void
+    {
+        $company_logo = Option::where('name', '=', 'company_logo')->first();
+
+        $view->with(['company_logo' => $company_logo]);
+    }
+
+}
diff --git a/resources/views/components/company-logo.blade.php b/resources/views/components/company-logo.blade.php
new file mode 100644
index 0000000..41664a0
--- /dev/null
+++ b/resources/views/components/company-logo.blade.php
@@ -0,0 +1 @@
+<img src="{{ $company_logo->value }}" {{ $attributes }}/>
diff --git a/resources/views/layouts/navigation.blade.php b/resources/views/layouts/navigation.blade.php
index 80801c3..add85db 100644
--- a/resources/views/layouts/navigation.blade.php
+++ b/resources/views/layouts/navigation.blade.php
@@ -6,15 +6,12 @@
                 <!-- Logo -->
                 <div class="shrink-0 flex items-center">
                     <a href="{{ route('dashboard') }}">
-                        <x-application-logo class="block h-9 w-auto fill-current text-gray-800 dark:text-gray-200"/>
+                        <x-company-logo class="block h-9 w-auto fill-current text-gray-800 dark:text-gray-200"/>
                     </a>
                 </div>
 
                 <!-- Navigation Links -->
                 <div class="hidden space-x-8 sm:-my-px sm:ms-10 sm:flex">
-                    <x-nav-link :href="route('dashboard')" :active="request()->routeIs('dashboard')">
-                        {{ __('dashboard.Dashboard') }}
-                    </x-nav-link>
                     <x-nav-link :href="route('customer.index')"
                                 :active="\Illuminate\Support\Str::startsWith(request()->route()->getName(), 'customer.') || \Illuminate\Support\Str::startsWith(request()->route()->getName(), 'address.')">
                         {{ __('customer.Customers') }}
diff --git a/resources/views/pdfs/header.blade.php b/resources/views/pdfs/header.blade.php
index ef57d5e..47f24ce 100644
--- a/resources/views/pdfs/header.blade.php
+++ b/resources/views/pdfs/header.blade.php
@@ -1,7 +1,11 @@
 <header>
     <div>
         <div class="left header-left">
-            <img class="header-logo" src="{{ $options->company_logo }}" />
+            @php
+                $arr = explode(';base64,', $options->company_logo);
+                $type = substr($arr[0], strpos($arr[0], '/') + 1);
+            @endphp
+            <img class="header-logo" src="{{ base_path('/public/storage/company_logo.' . $type) }}" />
         </div>
         <div class="right header-right text-right">
             <div>{{ $options->company_name }}</div>