diff --git a/app/Contracts/ProtocolInterface.php b/app/Contracts/ProtocolInterface.php
index bf5c589..c64617b 100644
--- a/app/Contracts/ProtocolInterface.php
+++ b/app/Contracts/ProtocolInterface.php
@@ -1,7 +1,5 @@
 <?php
 
-declare(strict_types=1);
-
 namespace App\Contracts;
 
 interface ProtocolInterface
diff --git a/app/Http/Controllers/V1/Server/UniProxyController.php b/app/Http/Controllers/V1/Server/UniProxyController.php
index 76e2592..36a3ccb 100644
--- a/app/Http/Controllers/V1/Server/UniProxyController.php
+++ b/app/Http/Controllers/V1/Server/UniProxyController.php
@@ -1,7 +1,5 @@
 <?php
 
-declare(strict_types=1);
-
 namespace App\Http\Controllers\V1\Server;
 
 use App\Http\Controllers\Controller;
@@ -144,7 +142,7 @@ class UniProxyController extends Controller
         }
 
         $eTag = sha1(json_encode($response));
-        if (strpos($request->header('If-None-Match') ?? '', $eTag) !== false) {
+        if (strpos($request->header('If-None-Match', '') ?? '', $eTag) !== false) {
             return response(null, 304);
         }
         return response($response)->header('ETag', "\"{$eTag}\"");
diff --git a/app/Http/Middleware/Server.php b/app/Http/Middleware/Server.php
index 88fc6b6..fde0196 100644
--- a/app/Http/Middleware/Server.php
+++ b/app/Http/Middleware/Server.php
@@ -1,6 +1,5 @@
 <?php
 
-declare(strict_types=1);
 
 namespace App\Http\Middleware;
 
diff --git a/app/Http/Requests/Admin/ServerSave.php b/app/Http/Requests/Admin/ServerSave.php
index 2446118..4587519 100644
--- a/app/Http/Requests/Admin/ServerSave.php
+++ b/app/Http/Requests/Admin/ServerSave.php
@@ -1,6 +1,5 @@
 <?php
 
-declare(strict_types=1);
 
 namespace App\Http\Requests\Admin;
 
diff --git a/app/Http/Resources/PlanResource.php b/app/Http/Resources/PlanResource.php
index ca52ccb..079d96e 100644
--- a/app/Http/Resources/PlanResource.php
+++ b/app/Http/Resources/PlanResource.php
@@ -1,6 +1,5 @@
 <?php
 
-declare(strict_types=1);
 
 namespace App\Http\Resources;
 
diff --git a/app/Jobs/StatServerJob.php b/app/Jobs/StatServerJob.php
index 2d59a9b..6dfc793 100644
--- a/app/Jobs/StatServerJob.php
+++ b/app/Jobs/StatServerJob.php
@@ -1,6 +1,5 @@
 <?php
 
-declare(strict_types=1);
 
 namespace App\Jobs;
 
diff --git a/app/Jobs/StatUserJob.php b/app/Jobs/StatUserJob.php
index 80fd5ce..950421b 100644
--- a/app/Jobs/StatUserJob.php
+++ b/app/Jobs/StatUserJob.php
@@ -1,6 +1,5 @@
 <?php
 
-declare(strict_types=1);
 
 namespace App\Jobs;
 
diff --git a/app/Jobs/SyncUserOnlineStatusJob.php b/app/Jobs/SyncUserOnlineStatusJob.php
index e03ab46..32d463b 100644
--- a/app/Jobs/SyncUserOnlineStatusJob.php
+++ b/app/Jobs/SyncUserOnlineStatusJob.php
@@ -1,6 +1,5 @@
 <?php
 
-declare(strict_types=1);
 
 namespace App\Jobs;
 
diff --git a/app/Services/UserOnlineService.php b/app/Services/UserOnlineService.php
index ce6cc0b..5445fa0 100644
--- a/app/Services/UserOnlineService.php
+++ b/app/Services/UserOnlineService.php
@@ -1,6 +1,5 @@
 <?php
 
-declare(strict_types=1);
 
 namespace App\Services;