Fix some bug and adds an error view to debug where errors are coming from

OurUmbraco.Site/OurUmbraco.Site.csproj

@@ -4366,6 +4366,7 @@
     <Content Include="Views\Partials\Projects\ProjectDetails.cshtml" />
     <Content Include="Views\Partials\Releases\ReleasesDropdown.cshtml" />
     <Content Include="Views\Partials\Releases\AllReleases.cshtml" />
+    <Content Include="Views\Error.cshtml" />
     <None Include="web.Debug.config">
       <DependentUpon>web.config</DependentUpon>
     </None>

OurUmbraco.Site/Views/Error.cshtml

@@ -0,0 +1,7 @@
+@using Umbraco.Core.Logging
+@{
+    var absoluteReferrer = string.Empty;
+    var referrer = HttpContext.Current.Request.UrlReferrer;
+    if(referrer != null) { absoluteReferrer = referrer.AbsoluteUri; }
+    LogHelper.Info<string>(string.Format("Error view requested on page {0} - referrer {1}", HttpContext.Current.Request.Url.AbsoluteUri, absoluteReferrer));
+}

OurUmbraco.Site/Views/Partials/Members/PublicProfile.cshtml

@@ -37,7 +37,6 @@
             }
         }
         
-        var currentMember = MemberData.Member;
         var reputationCurrent = member.GetPropertyValue<int>("reputationCurrent");
 
         var nodeListingProvider = new NodeListingProvider();
@@ -239,7 +238,7 @@
             </div>
         </div>
         <!-- .public-member -->
-        if (MemberData.IsAdmin)
+        if (MemberData != null && MemberData.IsAdmin)
         {
             var allTopics = ts.GetLatestTopicsForMember(member.Id, false, 1000);
 
@@ -270,7 +269,8 @@
             </div>
         }
         <br /><br />
-        if (currentMember.IsHq())
+        var currentMember = MemberData != null ? MemberData.Member : null; 
+        if (currentMember != null && currentMember.IsHq())
         {
             <div style="border: 1px solid red; padding: 4px;">
                 <p>HQ Tools (also known as "with great power comes great responsibility"):</p><br />