diff --git a/Bootstrap.Admin/Controllers/Api/GiteeController.cs b/Bootstrap.Admin/Controllers/Api/GiteeController.cs
index 59ba5858..56b4854e 100644
--- a/Bootstrap.Admin/Controllers/Api/GiteeController.cs
+++ b/Bootstrap.Admin/Controllers/Api/GiteeController.cs
@@ -1,5 +1,6 @@
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
+using System;
 using System.Linq;
 using System.Net.Http;
 using System.Text.RegularExpressions;
@@ -28,10 +29,10 @@ namespace Bootstrap.Admin.Controllers.Api
         public async Task<ActionResult> Issues([FromServices]IHttpClientFactory httpClientFactory, [FromQuery]string userName = "LongbowEnterprise", [FromQuery]string repoName = "BootstrapAdmin", [FromQuery]string label = "custom badge", [FromQuery]string color = "orange")
         {
             var client = httpClientFactory.CreateClient();
-            var content = await client.GetStringAsync($"https://gitee.com/{userName}/{repoName}/issues");
+            var content = await GetJsonAsync(() => client.GetStringAsync($"https://gitee.com/{userName}/{repoName}/issues"));
             var regex = Regex.Matches(content, "<div class='ui mini circular label'>([\\d]+)</div>", RegexOptions.IgnoreCase);
             var labels = new string[] { "open", "closed", "rejected" };
-            var result = regex.Select((m, i) => $"{labels[i]} {m.Groups[1].Value}");
+            var result = string.IsNullOrEmpty(content) ? new string[] { "unknown" } : regex.Select((m, i) => $"{labels[i]} {m.Groups[1].Value}");
             return new JsonResult(new { schemaVersion = 1, label, message = string.Join(" ", result), color });
         }
 
@@ -48,10 +49,10 @@ namespace Bootstrap.Admin.Controllers.Api
         public async Task<ActionResult> Pulls([FromServices]IHttpClientFactory httpClientFactory, [FromQuery]string userName = "LongbowEnterprise", [FromQuery]string repoName = "BootstrapAdmin", [FromQuery]string label = "custom badge", [FromQuery]string color = "orange")
         {
             var client = httpClientFactory.CreateClient();
-            var content = await client.GetStringAsync($"https://gitee.com/{userName}/{repoName}/pulls");
+            var content = await GetJsonAsync(() => client.GetStringAsync($"https://gitee.com/{userName}/{repoName}/pulls"));
             var regex = Regex.Matches(content, "<div class='ui mini circular label'>([\\d]+)</div>", RegexOptions.IgnoreCase);
             var labels = new string[] { "open", "merged", "closed" };
-            var result = regex.Select((m, i) => $"{labels[i]} {m.Groups[1].Value}");
+            var result = string.IsNullOrEmpty(content) ? new string[] { "unknown" } : regex.Select((m, i) => $"{labels[i]} {m.Groups[1].Value}");
             return new JsonResult(new { schemaVersion = 1, label, message = string.Join(" ", result), color });
         }
 
@@ -68,9 +69,9 @@ namespace Bootstrap.Admin.Controllers.Api
         public async Task<ActionResult> Releases([FromServices]IHttpClientFactory httpClientFactory, [FromQuery]string userName = "LongbowEnterprise", [FromQuery]string repoName = "BootstrapAdmin", [FromQuery]string label = "custom badge", [FromQuery]string color = "orange")
         {
             var client = httpClientFactory.CreateClient();
-            var content = await client.GetStringAsync($"https://gitee.com/{userName}/{repoName}/releases");
+            var content = await GetJsonAsync(() => client.GetStringAsync($"https://gitee.com/{userName}/{repoName}/releases"));
             var regex = Regex.Match(content, $"<a href=\"/{userName}/{repoName}/releases/([^\\s]+)\" target=\"_blank\">", RegexOptions.IgnoreCase);
-            var result = regex.Groups[1].Value;
+            var result = string.IsNullOrEmpty(content) ? "unknown" : regex.Groups[1].Value;
             return new JsonResult(new { schemaVersion = 1, label, message = result, color });
         }
 
@@ -88,10 +89,28 @@ namespace Bootstrap.Admin.Controllers.Api
         public async Task<ActionResult> Builds([FromServices]IHttpClientFactory httpClientFactory, [FromQuery]string userName = "ArgoZhang", [FromQuery]string projName = "bootstrapadmin", [FromQuery]string branchName = "master", [FromQuery]string label = "custom badge", [FromQuery]string color = "orange")
         {
             var client = httpClientFactory.CreateClient();
-            var content = await client.GetAsJsonAsync<AppveyorBuildResult>($"https://ci.appveyor.com/api/projects/{userName}/{projName}/branch/{branchName}");
+            var content = await GetJsonAsync(() => client.GetAsJsonAsync<AppveyorBuildResult>($"https://ci.appveyor.com/api/projects/{userName}/{projName}/branch/{branchName}"));
             return new JsonResult(new { schemaVersion = 1, label, message = content.Build.Version, color });
         }
 
+        private async static Task<T> GetJsonAsync<T>(Func<Task<T>> callback)
+        {
+            var ret = default(T);
+            try
+            {
+                ret = await callback();
+            }
+            catch (TaskCanceledException)
+            {
+
+            }
+            catch (Exception ex)
+            {
+                ex.Log();
+            }
+            return ret;
+        }
+
         /// <summary>
         /// 
         /// </summary>