diff --git a/Bootstrap.Admin/App_Start/DBPublisher.cs b/Bootstrap.Admin/App_Start/DBPublisher.cs
index ad118737..d4ee6bda 100644
--- a/Bootstrap.Admin/App_Start/DBPublisher.cs
+++ b/Bootstrap.Admin/App_Start/DBPublisher.cs
@@ -1,4 +1,5 @@
 using Bootstrap.DataAccess;
+using Longbow.Caching;
 using Longbow.ExceptionManagement;
 using Longbow.ExceptionManagement.Configuration;
 using System;
@@ -21,6 +22,7 @@ namespace Bootstrap.Admin
         {
             if (publisherElement.Mode == PublisherMode.Off) return;
             ExceptionHelper.Log(ex, additionalInfo);
+            CacheManager.Clear(k => k == ExceptionHelper.RetrieveExceptionsDataKey);
         }
     }
 }
\ No newline at end of file
diff --git a/Bootstrap.DataAccess/ExceptionHelper.cs b/Bootstrap.DataAccess/ExceptionHelper.cs
index 44389332..ccd803a6 100644
--- a/Bootstrap.DataAccess/ExceptionHelper.cs
+++ b/Bootstrap.DataAccess/ExceptionHelper.cs
@@ -14,7 +14,10 @@ namespace Bootstrap.DataAccess
     /// </summary>
     public static class ExceptionHelper
     {
-        internal const string RetrieveExceptionsDataKey = "ExceptionHelper-RetrieveExceptions";
+        /// <summary>
+        /// 
+        /// </summary>
+        public static readonly string RetrieveExceptionsDataKey = "ExceptionHelper-RetrieveExceptions";
         /// <summary>
         /// 
         /// </summary>
@@ -32,7 +35,7 @@ namespace Bootstrap.DataAccess
                     cmd.Parameters.Add(DBAccessManager.SqlDBAccess.CreateParameter("@AppDomainName", AppDomain.CurrentDomain.FriendlyName));
                     cmd.Parameters.Add(DBAccessManager.SqlDBAccess.CreateParameter("@ErrorPage", additionalInfo["ErrorPage"]));
                     cmd.Parameters.Add(DBAccessManager.SqlDBAccess.CreateParameter("@UserID", DBAccess.ToDBValue(additionalInfo["UserId"])));
-                    cmd.Parameters.Add(DBAccessManager.SqlDBAccess.CreateParameter("@UserIp", additionalInfo["UserIp"]));
+                    cmd.Parameters.Add(DBAccessManager.SqlDBAccess.CreateParameter("@UserIp", DBAccess.ToDBValue(additionalInfo["UserIp"])));
                     cmd.Parameters.Add(DBAccessManager.SqlDBAccess.CreateParameter("@ExceptionType", ex.GetType().FullName));
                     cmd.Parameters.Add(DBAccessManager.SqlDBAccess.CreateParameter("@Message", ex.Message));
                     cmd.Parameters.Add(DBAccessManager.SqlDBAccess.CreateParameter("@StackTrace", DBAccess.ToDBValue(ex.StackTrace), ParameterDirection.Input));
@@ -68,8 +71,8 @@ namespace Bootstrap.DataAccess
                                 Id = (int)reader[0],
                                 AppDomainName = (string)reader[1],
                                 ErrorPage = (string)reader[2],
-                                UserId = (string)reader[3],
-                                UserIp = (string)reader[4],
+                                UserId = reader.IsDBNull(3) ? string.Empty : (string)reader[3],
+                                UserIp = reader.IsDBNull(4) ? string.Empty : (string)reader[4],
                                 ExceptionType = (string)reader[5],
                                 Message = (string)reader[6],
                                 StackTrace = (string)reader[7],
diff --git a/DatabaseScripts/Install.sql b/DatabaseScripts/Install.sql
index dd7c4db3..b83ea8af 100644
--- a/DatabaseScripts/Install.sql
+++ b/DatabaseScripts/Install.sql
@@ -258,8 +258,8 @@ CREATE TABLE [dbo].[Exceptions](
 	[ID] [int] IDENTITY(1,1) NOT NULL,
 	[AppDomainName] [varchar](50) NOT NULL,
 	[ErrorPage] [varchar](50) NOT NULL,
-	[UserID] [varchar](50) NOT NULL,
-	[UserIp] [varchar](15) NOT NULL,
+	[UserID] [varchar](50) NULL,
+	[UserIp] [varchar](15) NULL,
 	[ExceptionType] [nvarchar](max) NOT NULL,
 	[Message] [nvarchar](max) NOT NULL,
 	[StackTrace] [nvarchar](max) NULL,