Sharepoint List Settings Error code

I would like to know if someone can help me figure out what this message means.

Here is a little information about the server setup, we have two virtual servers one is our sharepoint server (SPWEB) and the other is our SQL server (SPSQL).  Both servers are running Windows Server 2008 R2.

This is the error message that the sharepoint administrator gets when he tries to open a SP list withing the website.

Name=Request (GET:http://x.x.x.x:7000/procardauditfindingsnotice/_layouts/listedit.aspx?List=%7B819D0A08%2D9431%2D471C%2DA32F%2D3472084355AA%7D)      ec265a10-5e02-4c43-8de9-9083346edbc6
08/29/2012 15:38:20.68       w3wp.exe (0x1120)                             0x0F4C      SharePoint Foundation               Logging Correlation Data            xmnv      Medium        Site=/      ec265a10-5e02-4c43-8de9-9083346edbc6
08/29/2012 15:38:20.71       w3wp.exe (0x1120)                             0x0F4C      SharePoint Foundation               Runtime                             tkau      Unexpected      System.NullReferenceException: Object reference not set to an instance of an object.    at Microsoft.SharePoint.ApplicationPages.ListEditPage.SetSectionLinks()     at Microsoft.SharePoint.ApplicationPages.ListEditPage.OnLoad(EventArgs e)     at ASP._layouts_listedit_aspx.OnLoad(EventArgs e)     at System.Web.UI.Control.LoadRecursive()     at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)      ec265a10-5e02-4c43-8de9-9083346edbc6
08/29/2012 15:38:20.71       w3wp.exe (0x1120)                             0x0F4C      SharePoint Foundation               Monitoring                          b4ly      Medium        Leaving Monitored Scope (Request (GET:http://x.x.x.x:7000/procardauditfindingsnotice/_layouts/listedit.aspx?List=%7B819D0A08%2D9431%2D471C%2DA32F%2D3472084355AA%7D)). Execution Time=51.2294160291322      ec265a10-5e02-4c43-8de9-9083346edbc6
08/29/2012 15:38:30.52       OWSTIMER.EXE (0x04C4)                         0x0EDC      SharePoint Foundation               Monitoring                          nasq      Medium        Entering monitored scope (Timer Job job-diagnostics-blocking-query-provider)      7c511485-2c99-4ad4-93ba-ccb50cf81c8f
08/29/2012 15:38:30.52       OWSTIMER.EXE (0x04C4)                         0x1264      SharePoint Foundation               Monitoring                          nasq      Medium        Entering monitored scope (Timer Job job-diagnostics-sql-memory-provider)      57237fe0-11cf-4959-ac71-7d9442fedbc7

This problem started to happen after our Windows administrator pushed a MS patch update to all the windows server.  The Microsoft update (patch) was applied a few hours before this error started to happen.

About 30 minutes later the SP administrator informed me that he could not reach the SP website.  I confirmed this and it appears that the Microsoft patch may have caused more harm then good.

After, several hours of doing an emergency restore of both servers SPWEB and SPSQL we finally have both servers back online.

So, I have two questions, first it is logical to think that what caused the problem was the patch update, do you agree?

If so then how do I determine which MS update caused the problem?

Besides doing a DBCC CHECKDB on the databases which I already have done, is there a MS SP application that the SP administrator (SP Doctor?) can use to check if the SP application is working normally?

Thanks!