diff --git a/WebDoorCreator.Data/Services/QueueDataService.cs b/WebDoorCreator.Data/Services/QueueDataService.cs
index 7a39262..687da5b 100644
--- a/WebDoorCreator.Data/Services/QueueDataService.cs
+++ b/WebDoorCreator.Data/Services/QueueDataService.cs
@@ -74,6 +74,17 @@ namespace WebDoorCreator.Data.Services
             RedisValue svgVal = await redisDb.StringGetAsync(currSvgKey);
             return svgVal.ToString();
         }
+        /// <summary>
+        /// Restitusice gli errori della porta in oggetto
+        /// </summary>
+        /// <param name="doorIdVers">formato DoorId:Versione</param>
+        /// <returns></returns>
+        public async Task<string> DoorErrGet(string doorIdVers)
+        {
+            RedisKey currErrKey = new RedisKey($"{Constants.CALC_REQ_ERRS}:{doorIdVers}");
+            RedisValue errVal = await redisDb.StringGetAsync(currErrKey);
+            return errVal.ToString();
+        }
 
         public async Task<bool> FlushRedisCache()
         {
diff --git a/WebDoorCreator.UI/Components/DoorDef/DoorPreview.razor b/WebDoorCreator.UI/Components/DoorDef/DoorPreview.razor
index 73ae96b..7e357ee 100644
--- a/WebDoorCreator.UI/Components/DoorDef/DoorPreview.razor
+++ b/WebDoorCreator.UI/Components/DoorDef/DoorPreview.razor
@@ -1,7 +1,10 @@
 <div class="" style="height:100%; width:100%; position:sticky; background: linear-gradient(#AFCFD1, #92B2C4);min-height: 46rem;max-height: 46rem;">
+    @if (IsErr)
+    {
+        <div class="alert alert-warning text-center fs-2">@ErrCode</div>
+    }
     @if (!string.IsNullOrEmpty(@SvgContent))
     {
         @svgPreview
-        @*<b>@SvgContent</b>*@
     }
 </div>
\ No newline at end of file
diff --git a/WebDoorCreator.UI/Components/DoorDef/DoorPreview.razor.cs b/WebDoorCreator.UI/Components/DoorDef/DoorPreview.razor.cs
index 825c53e..f97f239 100644
--- a/WebDoorCreator.UI/Components/DoorDef/DoorPreview.razor.cs
+++ b/WebDoorCreator.UI/Components/DoorDef/DoorPreview.razor.cs
@@ -18,6 +18,11 @@ namespace WebDoorCreator.UI.Components.DoorDef
                 //StateHasChanged();
             }
         }
+        [Parameter]
+        public string ErrCode { get; set; } = "ERROREEEEE";
+        [Parameter]
+        public bool IsErr { get; set; } = false;
+
         private static Logger Log = LogManager.GetCurrentClassLogger();
 
         protected string _svgContent { get; set; } = "";
diff --git a/WebDoorCreator.UI/Pages/DoorDefinition.razor b/WebDoorCreator.UI/Pages/DoorDefinition.razor
index 1534989..d14a2e4 100644
--- a/WebDoorCreator.UI/Pages/DoorDefinition.razor
+++ b/WebDoorCreator.UI/Pages/DoorDefinition.razor
@@ -41,8 +41,8 @@
         </div>
     </div>
     <div class="col-5 p-0">
-        <CascadingValue Value="@idDoor">
-            <DoorPreview SvgContent="@DoorSvgContent"></DoorPreview>
+        <CascadingValue Value="@idDoor">            
+            <DoorPreview IsErr="@IsErr" ErrCode="@ErrCode" SvgContent="@DoorSvgContent"></DoorPreview>
         </CascadingValue>
     </div>
 </div>
diff --git a/WebDoorCreator.UI/Pages/DoorDefinition.razor.cs b/WebDoorCreator.UI/Pages/DoorDefinition.razor.cs
index bfce2dd..ba5b857 100644
--- a/WebDoorCreator.UI/Pages/DoorDefinition.razor.cs
+++ b/WebDoorCreator.UI/Pages/DoorDefinition.razor.cs
@@ -170,6 +170,9 @@ namespace WebDoorCreator.UI.Pages
 
         #region Private Methods
 
+        protected string ErrCode { get; set; } = "ERRORE GRAVISSIMO! NON SI FA!!!!";
+        protected bool IsErr { get; set; } = false;
+
         private async void CalcDonePipe_EA_NewMessage(object? sender, EventArgs e)
         {
             DoorSvgContent = "";
@@ -181,6 +184,11 @@ namespace WebDoorCreator.UI.Pages
                 string doorSvgVers = currArgs.newMessage;
                 //cerco su redis la porta in oggetto
                 DoorSvgContent = await QDataServ.DoorSvgGet(doorSvgVers);
+                if (string.IsNullOrEmpty(DoorSvgContent))
+                {
+                    IsErr = true;
+                    ErrCode = await QDataServ.DoorErrGet(doorSvgVers);
+                }
                 await Task.Run(async () => await InvokeAsync(StateHasChanged));
             }
         }