diff --git a/HistoryContest.Server/Controllers/APIs/CounselorController.cs b/HistoryContest.Server/Controllers/APIs/CounselorController.cs
index 7565d9f..7dab1df 100644
--- a/HistoryContest.Server/Controllers/APIs/CounselorController.cs
+++ b/HistoryContest.Server/Controllers/APIs/CounselorController.cs
@@ -16,7 +16,7 @@
 namespace HistoryContest.Server.Controllers.APIs
 {
     [Authorize(Roles = "Counselor, Administrator")]
-    [ValidateAntiForgeryToken]
+    //[ValidateAntiForgeryToken]
     [Produces("application/json")]
     [Route("api/[controller]")]
     public class CounselorController : Controller
diff --git a/HistoryContest.Server/Controllers/APIs/QuestionController.cs b/HistoryContest.Server/Controllers/APIs/QuestionController.cs
index 44d11e2..146ca4d 100644
--- a/HistoryContest.Server/Controllers/APIs/QuestionController.cs
+++ b/HistoryContest.Server/Controllers/APIs/QuestionController.cs
@@ -14,7 +14,7 @@
 namespace HistoryContest.Server.Controllers.APIs
 {
     [Authorize(Roles = "Student, Administrator")]
-    [ValidateAntiForgeryToken]
+    //[ValidateAntiForgeryToken]
     [Produces("application/json")]
     [Route("api/[controller]")]
     public class QuestionController : Controller
diff --git a/HistoryContest.Server/Controllers/APIs/ResultController.cs b/HistoryContest.Server/Controllers/APIs/ResultController.cs
index e16ea1e..eed7574 100644
--- a/HistoryContest.Server/Controllers/APIs/ResultController.cs
+++ b/HistoryContest.Server/Controllers/APIs/ResultController.cs
@@ -18,7 +18,7 @@
 namespace HistoryContest.Server.Controllers.APIs
 {
     [Authorize]
-    [ValidateAntiForgeryToken]
+    //[ValidateAntiForgeryToken]
     [Produces("application/json")]
     [Route("api/[controller]")]
     public class ResultController : Controller
diff --git a/HistoryContest.Server/Controllers/APIs/StudentController.cs b/HistoryContest.Server/Controllers/APIs/StudentController.cs
index cfeb660..57ac92c 100644
--- a/HistoryContest.Server/Controllers/APIs/StudentController.cs
+++ b/HistoryContest.Server/Controllers/APIs/StudentController.cs
@@ -14,7 +14,7 @@
 namespace HistoryContest.Server.Controllers.APIs
 {
     [Authorize(Roles = "Student, Administrator")]
-    [ValidateAntiForgeryToken]
+    //[ValidateAntiForgeryToken]
     [Produces("application/json")]
     [Route("api/[controller]")]
     public class StudentController : Controller
diff --git a/HistoryContest.Server/Data/UnitOfWork.cs b/HistoryContest.Server/Data/UnitOfWork.cs
index b35335b..df745c2 100644
--- a/HistoryContest.Server/Data/UnitOfWork.cs
+++ b/HistoryContest.Server/Data/UnitOfWork.cs
@@ -76,6 +76,7 @@ public async Task SaveCacheToDataBase()
             }
             await DbContext.SaveChangesAsync();
             var studentIDs = await Cache.Database.ListRangeAsync("StudentIDsToUpdate");
+            await Cache.Database.KeyDeleteAsync("StudentIDsToUpdate");
             var studentTasks = studentIDs.Select(async ID => await Cache.StudentEntities(ID.ToString().ToDepartmentID()).GetAsync(ID));
             foreach (var studentTask in studentTasks)
             {
diff --git a/HistoryContest.Server/HistoryContest.sln b/HistoryContest.Server/HistoryContest.sln
deleted file mode 100644
index d8ce657..0000000
--- a/HistoryContest.Server/HistoryContest.sln
+++ /dev/null
@@ -1,31 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.26730.8
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "HistoryContest.Server", "HistoryContest.Server\HistoryContest.Server.csproj", "{0F8705F9-D0E1-4B27-B894-C7E3BC9EA0F8}"
-EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "HistoryContest.Test", "HistoryContest.Test\HistoryContest.Test.csproj", "{B51B5499-C58C-402C-9C41-1D09DE89455F}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{0F8705F9-D0E1-4B27-B894-C7E3BC9EA0F8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{0F8705F9-D0E1-4B27-B894-C7E3BC9EA0F8}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{0F8705F9-D0E1-4B27-B894-C7E3BC9EA0F8}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{0F8705F9-D0E1-4B27-B894-C7E3BC9EA0F8}.Release|Any CPU.Build.0 = Release|Any CPU
-		{B51B5499-C58C-402C-9C41-1D09DE89455F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{B51B5499-C58C-402C-9C41-1D09DE89455F}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{B51B5499-C58C-402C-9C41-1D09DE89455F}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{B51B5499-C58C-402C-9C41-1D09DE89455F}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {9D073CA6-A091-46A5-AAFB-4E20495BDD47}
-	EndGlobalSection
-EndGlobal
diff --git a/XUnitTest/TextFixture.cs b/HistoryContest.Test/TextFixture.cs
similarity index 100%
rename from XUnitTest/TextFixture.cs
rename to HistoryContest.Test/TextFixture.cs