diff --git a/WebDoorCreator.API/Controllers/QueueController.cs b/WebDoorCreator.API/Controllers/QueueController.cs
index da489a7..9498d25 100644
--- a/WebDoorCreator.API/Controllers/QueueController.cs
+++ b/WebDoorCreator.API/Controllers/QueueController.cs
@@ -37,6 +37,9 @@ namespace WebDoorCreator.API.Controllers
             var actProc = await QDataServ.NumRequestProcessing();
             answ.Add("processing", actProc);
 
+            var actErr = await QDataServ.NumRequestErrors();
+            answ.Add("errors", actErr);
+
             var actDone = await QDataServ.NumRequestDone();
             answ.Add("done", actDone);
             return answ;
@@ -88,6 +91,9 @@ namespace WebDoorCreator.API.Controllers
             var actProc = await QDataServ.RequestProcessing();
             answ.Add("processing", actProc);
 
+            var actErr = await QDataServ.RequestErr();
+            answ.Add("errors", actErr);
+
             var actDone = await QDataServ.RequestDone();
             answ.Add("done", actDone);
             return answ;
diff --git a/WebDoorCreator.Data/Services/QueueDataService.cs b/WebDoorCreator.Data/Services/QueueDataService.cs
index 93cc9c8..17a6c05 100644
--- a/WebDoorCreator.Data/Services/QueueDataService.cs
+++ b/WebDoorCreator.Data/Services/QueueDataService.cs
@@ -102,6 +102,25 @@ namespace WebDoorCreator.Data.Services
             return numReq;
         }
 
+        /// <summary>
+        /// Get # of calculation request with errors
+        /// </summary>
+        public async Task<long> NumRequestErrors()
+        {
+            long numReq = 0;
+            string source = "REDIS";
+            Dictionary<string, string> dictResult = new Dictionary<string, string>();
+            // cerco da cache
+            RedisKey currKey = new RedisKey(Constants.CALC_REQ_ERRS);
+            Stopwatch stopWatch = new Stopwatch();
+            stopWatch.Start();
+            numReq = await redisDb.HashLengthAsync(currKey);
+            stopWatch.Stop();
+            TimeSpan ts = stopWatch.Elapsed;
+            Log.Debug($"NumRequestErrors | {source} in: {ts.TotalMilliseconds} ms");
+            return numReq;
+        }
+
         /// <summary>
         /// Get # of calculation request pending
         /// </summary>
@@ -207,6 +226,35 @@ namespace WebDoorCreator.Data.Services
             long numReq = await RedHashUpsert(currKey, doorId, vers);
             return numReq;
         }
+
+        /// <summary>
+        /// Get Queue request with errors
+        /// </summary>
+        /// <returns>Dictionary of DoorId, saveVersNumb</returns>
+        public async Task<Dictionary<string, string>> RequestErr()
+        {
+            string source = "REDIS";
+            long numReq = 0;
+            Dictionary<string, string> dictResult = new Dictionary<string, string>();
+            // cerco da cache
+            RedisKey currKey = new RedisKey(Constants.CALC_REQ_ERRS);
+            Stopwatch stopWatch = new Stopwatch();
+            stopWatch.Start();
+            numReq = redisDb.HashLength(currKey);
+            if (numReq > 0)
+            {
+                var rawData = await redisDb.HashGetAllAsync(currKey);
+                foreach (var item in rawData)
+                {
+                    dictResult.Add($"{item.Name}", $"{item.Value}");
+                }
+            }
+            stopWatch.Stop();
+            TimeSpan ts = stopWatch.Elapsed;
+            Log.Debug($"RequestErr | {source} in: {ts.TotalMilliseconds} ms");
+            return dictResult;
+        }
+
         /// <summary>
         /// Rimuove hash record errori
         /// </summary>
@@ -348,6 +396,15 @@ namespace WebDoorCreator.Data.Services
                 await RequestProcessingRemove(item.Name!);
                 fatto = true;
             }
+            // cerco le richieste con errori
+            currKey = new RedisKey(Constants.CALC_REQ_ERRS);
+            rawData = await redisDb.HashGetAllAsync(currKey);
+            foreach (var item in rawData)
+            {
+                await RequestPendingUpsert(item.Name!, item.Value!);
+                await RequestErrRemove(item.Name!);
+                fatto = true;
+            }
             // cerco le richieste processed
             currKey = new RedisKey(Constants.CALC_REQ_DONE);
             rawData = await redisDb.HashGetAllAsync(currKey);