diff --git a/app/config/site-templates.php b/app/config/site-templates.php
index 9e0b36053e..52d2817c3d 100644
--- a/app/config/site-templates.php
+++ b/app/config/site-templates.php
@@ -27,7 +27,7 @@ const TEMPLATE_FRAMEWORKS = [
         'outputDirectory' => './build',
         'buildRuntime' => 'node-22',
         'adapter' => 'ssr',
-        'fallbackFile' => null,
+        'fallbackFile' => '',
     ],
     'NEXTJS' => [
         'key' => 'nextjs',
@@ -37,7 +37,7 @@ const TEMPLATE_FRAMEWORKS = [
         'outputDirectory' => './.next',
         'buildRuntime' => 'node-22',
         'adapter' => 'ssr',
-        'fallbackFile' => null,
+        'fallbackFile' => '',
     ],
     'NUXT' => [
         'key' => 'nuxt',
@@ -47,7 +47,7 @@ const TEMPLATE_FRAMEWORKS = [
         'outputDirectory' => './.output',
         'buildRuntime' => 'node-22',
         'adapter' => 'ssr',
-        'fallbackFile' => null,
+        'fallbackFile' => '',
     ],
     'REMIX' => [
         'key' => 'remix',
@@ -57,7 +57,7 @@ const TEMPLATE_FRAMEWORKS = [
         'outputDirectory' => './build',
         'buildRuntime' => 'node-22',
         'adapter' => 'ssr',
-        'fallbackFile' => null,
+        'fallbackFile' => '',
     ],
     'ASTRO' => [
         'key' => 'astro',
@@ -67,7 +67,7 @@ const TEMPLATE_FRAMEWORKS = [
         'outputDirectory' => './dist',
         'buildRuntime' => 'node-22',
         'adapter' => 'ssr',
-        'fallbackFile' => null,
+        'fallbackFile' => '',
     ],
     'FLUTTER' => [
         'key' => 'flutter',
@@ -77,7 +77,7 @@ const TEMPLATE_FRAMEWORKS = [
         'outputDirectory' => './build/web',
         'buildRuntime' => 'flutter-3.24',
         'adapter' => 'static',
-        'fallbackFile' => null,
+        'fallbackFile' => '',
     ],
     'OTHER' => [
         'key' => 'other',
diff --git a/src/Appwrite/Platform/Modules/Functions/Workers/Builds.php b/src/Appwrite/Platform/Modules/Functions/Workers/Builds.php
index c5310378b9..e970b6213d 100644
--- a/src/Appwrite/Platform/Modules/Functions/Workers/Builds.php
+++ b/src/Appwrite/Platform/Modules/Functions/Workers/Builds.php
@@ -39,8 +39,6 @@ use Utopia\Storage\Device\Local;
 use Utopia\System\System;
 use Utopia\VCS\Adapter\Git\GitHub;
 
-use function PHPUnit\Framework\isEmpty;
-
 class Builds extends Action
 {
     public static function getName(): string
@@ -710,7 +708,7 @@ class Builds extends Action
                 throw new \Exception('Build size should be less than ' . number_format($buildSizeLimit / 1048576, 2) . ' MBs.');
             }
 
-            if ($resource->getCollection() === 'sites' && isEmpty($resource->getAttribute('adapter'))) {
+            if ($resource->getCollection() === 'sites' && empty($resource->getAttribute('adapter'))) {
                 $listFilesCommand = "cd /usr/local/build && cd " . \escapeshellarg($resource->getAttribute('outputDirectory')) . " && find . -name 'node_modules' -prune -o -type f -print";
                 $command = $executor->createCommand(
                     deploymentId: $deployment->getId(),
diff --git a/tests/e2e/Services/Sites/SitesCustomServerTest.php b/tests/e2e/Services/Sites/SitesCustomServerTest.php
index fd5f9e7e66..12721e3dc8 100644
--- a/tests/e2e/Services/Sites/SitesCustomServerTest.php
+++ b/tests/e2e/Services/Sites/SitesCustomServerTest.php
@@ -64,7 +64,7 @@ class SitesCustomServerTest extends Scope
          */
         $site = $this->createSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -112,7 +112,7 @@ class SitesCustomServerTest extends Scope
             'framework' => 'other',
             'buildRuntime' => 'node-22',
             'outputDirectory' => './',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
         ]);
 
         $this->assertNotEmpty($siteId);
@@ -178,7 +178,7 @@ class SitesCustomServerTest extends Scope
     {
         $site = $this->createSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -531,7 +531,7 @@ class SitesCustomServerTest extends Scope
          */
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -611,7 +611,7 @@ class SitesCustomServerTest extends Scope
          */
         $siteId2 = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site 2',
             'outputDirectory' => './',
@@ -667,7 +667,7 @@ class SitesCustomServerTest extends Scope
     {
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -700,7 +700,7 @@ class SitesCustomServerTest extends Scope
     {
         $site = $this->createSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -717,7 +717,7 @@ class SitesCustomServerTest extends Scope
 
         $site = $this->updateSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site Updated',
             'outputDirectory' => './',
@@ -818,7 +818,7 @@ class SitesCustomServerTest extends Scope
     {
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -879,7 +879,7 @@ class SitesCustomServerTest extends Scope
     {
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -931,7 +931,7 @@ class SitesCustomServerTest extends Scope
     {
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -976,7 +976,7 @@ class SitesCustomServerTest extends Scope
     {
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -1155,7 +1155,7 @@ class SitesCustomServerTest extends Scope
     {
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -1206,7 +1206,7 @@ class SitesCustomServerTest extends Scope
     {
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -1223,7 +1223,7 @@ class SitesCustomServerTest extends Scope
         // Change the function specs
         $site = $this->updateSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -1240,7 +1240,7 @@ class SitesCustomServerTest extends Scope
         // Change the specs to 1vcpu 512mb
         $site = $this->updateSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -1260,7 +1260,7 @@ class SitesCustomServerTest extends Scope
 
         $site = $this->updateSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -1280,7 +1280,7 @@ class SitesCustomServerTest extends Scope
     {
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -1324,7 +1324,7 @@ class SitesCustomServerTest extends Scope
     {
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'outputDirectory' => './',
@@ -1830,7 +1830,7 @@ class SitesCustomServerTest extends Scope
     {
         $siteId = $this->setupSite([
             'buildRuntime' => 'node-22',
-            'fallbackFile' => null,
+            'fallbackFile' => '',
             'framework' => 'other',
             'name' => 'Test Site',
             'adapter' => 'static',