diff --git a/app/Http/Controllers/Bo/ProductsController.php b/app/Http/Controllers/Bo/ProductsController.php
index af40eeb..8572c68 100644
--- a/app/Http/Controllers/Bo/ProductsController.php
+++ b/app/Http/Controllers/Bo/ProductsController.php
@@ -259,7 +259,7 @@ class ProductsController extends Controller
         $rangeId         = $request->range_id;
         $taxRateId       = $request->tax_rate_id;
 
-        $this->checkSlugExistsWithinRange($rangeId, $slug, $product->id, $request);
+        $this->checkSlugExistsWithinRange($request, $rangeId, $slug, $product->id);
 
         $this->manageProductImages($request->picture, $product, $request->picture_large);
 
@@ -310,13 +310,13 @@ class ProductsController extends Controller
     /**
      * Check if slug already exists, if so redirect
      *
-     * @param integer $rangeId
-     * @param string  $slug
-     * @param integer $productId
-     * @param Request $request
+     * @param Request      $request
+     * @param integer      $rangeId
+     * @param string       $slug
+     * @param integer|null $productId
      * @return \Illuminate\Http\RedirectResponse|void
      */
-    private function checkSlugExistsWithinRange(int $rangeId, string $slug, int $productId, Request $request)
+    private function checkSlugExistsWithinRange(Request $request, int $rangeId, string $slug, int $productId = null)
     {
         // Check si le slug existe déjà dans cette gamme de produits.
         $slugExist = Product::where([
@@ -409,11 +409,11 @@ class ProductsController extends Controller
     /**
      * sync tags to product
      *
-     * @param array   $tags
-     * @param Product $product
+     * @param array|null $tags
+     * @param Product    $product
      * @return void
      */
-    private function syncTags(array $tags, Product &$product)
+    private function syncTags(array $tags = null, Product &$product)
     {
         if (!empty($tags)) {
             $arTagIds = array();
@@ -436,11 +436,11 @@ class ProductsController extends Controller
     /**
      * sync associated products to product
      *
-     * @param string  $prods
-     * @param Product $product
+     * @param string|null $prods
+     * @param Product     $product
      * @return void
      */
-    private function syncProduitsAssocies(string $prods, Product $product)
+    private function syncProduitsAssocies(string $prods = null, Product $product)
     {
         if (!empty($prods)) {
             $productIds = explode(",", $prods);
diff --git a/app/Mail/RegisterConfirmMail.php b/app/Mail/RegisterConfirmMail.php
index 7aecc05..b2595e0 100644
--- a/app/Mail/RegisterConfirmMail.php
+++ b/app/Mail/RegisterConfirmMail.php
@@ -34,7 +34,7 @@ class RegisterConfirmMail extends Mailable implements ShouldQueue
      * @param string|null           $firstname
      * @return void
      */
-    public function __construct(Customers $customer, mixed $firstname)
+    public function __construct(Customers $customer, string $firstname = null)
     {
         $this->firstname = $firstname;
         $this->customer  = $customer;
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index 740f8ab..4954f32 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -9,6 +9,7 @@ use Illuminate\Support\Facades\View;
 use Illuminate\Support\ServiceProvider;
 use Illuminate\Support\Facades\Blade;
 use Illuminate\Pagination\Paginator;
+use Illuminate\Support\Facades\Schema;
 use Illuminate\Support\Facades\URL;
 
 class AppServiceProvider extends ServiceProvider
@@ -38,29 +39,36 @@ class AppServiceProvider extends ServiceProvider
             setlocale(LC_TIME, strtoupper(config('app.locale')) . "_" . config('app.locale') . '.utf8');
         }
 
-        config([
-            'bosettings' => Setting::all()
-                ->keyBy('key')
-                // Key every setting by its name.
-                ->transform(function ($setting) {
-                    return $setting->value;
-                    // Return only the value.
-                })
-                ->toArray()
-            // Make it an array.
-        ]);
+        if (Schema::hasTable('settings')) {
+            // The "settings" table exists...
+            config([
+                'bosettings' => Setting::all()
+                    ->keyBy('key')
+                    // Key every setting by its name.
+                    ->transform(function ($setting) {
+                        return $setting->value;
+                        // Return only the value.
+                    })
+                    ->toArray()
+                // Make it an array.
+            ]);
 
-        // On partage les ranges (gammes produit).
-        $ranges = Range::where('status', '1')->get();
-        View::share('published_ranges', $ranges);
+            $front_settings = Setting::where('key', 'LIKE', 'theme_%')->get();
+            // Front theme settings.
+            View::share('front_settings', $front_settings);
+        }
 
-        // On partage les tags.
-        $tags = Tag::where('status', '1')->orderBy('order', 'ASC')->get();
-        View::share('published_tags', $tags);
+        if (Schema::hasTable('ranges')) {
+            // On partage les ranges (gammes produit).
+            $ranges = Range::where('status', '1')->get();
+            View::share('published_ranges', $ranges);
+        }
 
-        $front_settings = Setting::where('key', 'LIKE', 'theme_%')->get();
-        // Front theme settings.
-        View::share('front_settings', $front_settings);
+        if (Schema::hasTable('tags')) {
+            // On partage les tags.
+            $tags = Tag::where('status', '1')->orderBy('order', 'ASC')->get();
+            View::share('published_tags', $tags);
+        }
 
         Blade::directive('fmt_currency', function ($expression) {
             return "<?php