diff --git a/app/Http/Controllers/AdminController.php b/app/Http/Controllers/AdminController.php
index 8549b84..ef6f839 100755
--- a/app/Http/Controllers/AdminController.php
+++ b/app/Http/Controllers/AdminController.php
@@ -422,9 +422,11 @@ public function SendTestMail(Request $request)
     //Saves advanced config
     public function editAC(request $request)
     {
-        $AdvancedConfig = $request->AdvancedConfig;
-
-        file_put_contents('config/advanced-config.php', $AdvancedConfig);
+        if ($request->ResetAdvancedConfig == 'RESET_DEFAULTS') {
+            copy(base_path('storage/templates/advanced-config.php'), base_path('config/advanced-config.php')); 
+        } else {
+            file_put_contents('config/advanced-config.php', $request->AdvancedConfig);
+        }
 
         return redirect('/admin/config#2');
     }
diff --git a/resources/views/components/config/advanced-config.blade.php b/resources/views/components/config/advanced-config.blade.php
index 57524dc..644c245 100644
--- a/resources/views/components/config/advanced-config.blade.php
+++ b/resources/views/components/config/advanced-config.blade.php
@@ -1,40 +1,35 @@
 <p>{{__('messages.AC.description')}}</p>
-<form action="{{ route('editAC') }}" method="post">
+<form action="{{ route('editAC') }}" method="post" id="editForm">
   @csrf
   <div class="form-group">
     <label>{{__('messages.Advanced Configuration file.')}}</label>
     <textarea style="width:100%;display:none;" class="form-control" name="AdvancedConfig" rows="280">{{ file_get_contents('config/advanced-config.php') }}</textarea>
     <div id="editor" style="width:100%; height:<?php echo count(file('config/advanced-config.php')) * 24 + 15;?>px; background-color:transparent !important;" class="form-control border-1 border-light" name="AdvancedConfig" rows="280">{{ file_get_contents('config/advanced-config.php') }}</div>
   </div>
-  <button type="submit" class="btn btn-primary">{{__('messages.Save')}}</button>
-  <a class="btn btn-danger confirmation" href="{{url('/admin/advanced-config?restore-defaults')}}">{{__('messages.Restore defaults')}}</a>
-  <script type="text/javascript">
-      var elems = document.getElementsByClassName('confirmation');
-      var confirmIt = function (e) {
-          if (!confirm('Are you sure?')) e.preventDefault();
-      };
-      for (var i = 0, l = elems.length; i < l; i++) {
-          elems[i].addEventListener('click', confirmIt, false);
-      }
-  </script>
+  <button type="submit" class="btn btn-primary" id="saveBtn">{{__('messages.Save')}}</button>
+  <a class="btn btn-danger confirmation" href="#" id="restoreDefaultsBtn">{{__('messages.Restore defaults')}}</a>
 </form>
 
-
 <script src="{{ asset('assets/external-dependencies/ace.js') }}" type="text/javascript" charset="utf-8"></script>
 <script>
-var editor = ace.edit("editor");
-//if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
-if(!$('#toggle-switch').is(':checked')){
-// dark mode
-editor.setTheme("ace/theme/tomorrow_night");
-} else {
-editor.setTheme("ace/theme/xcode");
-}
-editor.getSession().setMode("ace/mode/javascript");
-editor.session.setUseWorker(false);
-</script>
-<script>
-editor.getSession().on('change', function(e) {
-$('textarea[name=AdvancedConfig]').val(editor.getSession().getValue());
-});
+  var editor = ace.edit("editor");
+
+  editor.getSession().on('change', function(e) {
+    $('textarea[name=AdvancedConfig]').val(editor.getSession().getValue());
+  });
+
+  $('#restoreDefaultsBtn').on('click', function(e) {
+    e.preventDefault();
+
+    var isAdvancedConfig = $(this).hasClass('confirmation');
+    var confirmationMessage = "Are you sure?";
+    
+    if (isAdvancedConfig) {
+      $('#editForm').append('<input type="hidden" name="ResetAdvancedConfig" value="RESET_DEFAULTS">');
+    }
+
+    if (confirm(confirmationMessage)) {
+      $('#editForm').submit();
+    }
+  });
 </script>