diff --git a/MyNCMusic/Helper/LoginHelper.cs b/MyNCMusic/Helper/LoginHelper.cs
index 34b3093..11454d2 100644
--- a/MyNCMusic/Helper/LoginHelper.cs
+++ b/MyNCMusic/Helper/LoginHelper.cs
@@ -17,11 +17,18 @@ public static class LoginHelper
         /// <returns></returns>
         public static LoginRoot LoginAccount()
         {
-            if (Http.cookies!=null&&Http.cookies.GetCookies(new Uri(ConfigService.ApiUri + "/login")).Count != 0)//存在cookies，检查登陆状态
+            try
             {
-                var status = GetLoginStatus();
-                if (status != null && status.Data.account !=null)
-                    return status.Data;
+                if (Http.cookies != null && Http.cookies.GetCookies(new Uri(ConfigService.ApiUri + "/login")) != null && Http.cookies.GetCookies(new Uri(ConfigService.ApiUri + "/login")).Count != 0)//存在cookies，检查登陆状态
+                {
+                    var status = GetLoginStatus();
+                    if (status != null && status.Data.account != null)
+                        return status.Data;
+                }
+            }
+            catch(NullReferenceException)//上一次请求出错后记录了错误的cookie，再次读取会引发null错误
+            {
+                Http.cookies = null;
             }
             if (Http.cookies == null)
                 Http.cookies = new System.Net.CookieContainer();
diff --git a/MyNCMusic/MyNCMusic.csproj b/MyNCMusic/MyNCMusic.csproj
index 63ab038..55728b9 100644
--- a/MyNCMusic/MyNCMusic.csproj
+++ b/MyNCMusic/MyNCMusic.csproj
@@ -19,8 +19,9 @@
     <WindowsXamlEnableOverview>true</WindowsXamlEnableOverview>
     <AppxPackageSigningEnabled>True</AppxPackageSigningEnabled>
     <GenerateAppInstallerFile>False</GenerateAppInstallerFile>
-    <PackageCertificateKeyFile>C:\Users\29987\source\repos\MyNCMusic\MyNCMusic\MyNCMusic_TemporaryKey.pfx</PackageCertificateKeyFile>
-    <PackageCertificateThumbprint>A7388FF8C875A3428868B2AAB048E42EE6C659AD</PackageCertificateThumbprint>
+    <PackageCertificateKeyFile>
+    </PackageCertificateKeyFile>
+    <PackageCertificateThumbprint>21671089A53989417F2962B3F4521E9FE52853CF</PackageCertificateThumbprint>
     <AppxPackageSigningTimestampDigestAlgorithm>SHA256</AppxPackageSigningTimestampDigestAlgorithm>
     <AppxAutoIncrementPackageRevision>False</AppxAutoIncrementPackageRevision>
     <GenerateTestArtifacts>True</GenerateTestArtifacts>
diff --git a/MyNCMusic/Package.appxmanifest b/MyNCMusic/Package.appxmanifest
index 16f8fd3..96ef298 100644
--- a/MyNCMusic/Package.appxmanifest
+++ b/MyNCMusic/Package.appxmanifest
@@ -12,7 +12,7 @@
   <Identity
     Name="QEDSD.MyNCMusic"
     Publisher="CN=QEDSD"
-    Version="1.0.2.0" />
+    Version="1.0.3.0" />
 
   <mp:PhoneIdentity PhoneProductId="211dfa3c-48a9-4219-ae7f-0cf2f059a970" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>