I'm not sure what happened but I am now getting a module Load Exception and page load exception when trying to load the Site File Manager either through the icon bar or the Admin menu.  I upgraded to DNN v3.3.5 a few days ago and something broke.

Below are the two errors.

Module Load Exception

ModuleId: 379
ModuleDefId: 21
FriendlyName: File Manager
ModuleControlSource: Admin/Files/FileManager.ascx
AssemblyVersion: 03.03.05
PortalID: 0
PortalName: Performance Trust Capital Partners
UserID: 1
UserName: host
ActiveTabID: 73
ActiveTabName: File Manager
RawURL: /Default.aspx?tabid=73&error=Object+reference+not+set+to+an+instance+of+an+object.&content=0
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://ptcp.performancetrust.com/PerformanceTrust/tabid/80/Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.1)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 82a49777-444a-493f-8ccf-42276c30c4be
InnerException: Invalid file name for monitoring: 'C:\Webs\WSIPT.com\Portals\0\images\marketminute\'. File names for monitoring must have absolute paths, and no wildcards.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Web.FileChangesMonitor.StartMonitoringPath
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Invalid file name for monitoring: 'C:\Webs\WSIPT.com\Portals\0\images\marketminute\'. File names for monitoring must have absolute paths, and no wildcards. ---> System.Web.HttpException: Invalid file name for monitoring: 'C:\Webs\WSIPT.com\Portals\0\images\marketminute\'. File names for monitoring must have absolute paths, and no wildcards. at System.Web.FileChangesMonitor.StartMonitoringPath(String alias, FileChangeEventHandler callback) at System.Web.Caching.CacheDependency.Init(Boolean isPublic, Boolean isSensitive, String[] filenamesArg, String[] cachekeysArg, CacheDependency dependency, DateTime utcStart) at System.Web.Caching.CacheDependency..ctor(String[] filenames) at DotNetNuke.Common.Utilities.FileSystemUtils.GetFolders(Int32 PortalID) at DotNetNuke.Modules.Admin.FileSystem.FileManager.BindFolderTree() at DotNetNuke.Modules.Admin.FileSystem.FileManager.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---
Source:
Server Name: WEB2

Page Load Exception

AssemblyVersion: 03.03.05
PortalID: 0
PortalName: Performance Trust Capital Partners
UserID: 1
UserName: host
ActiveTabID: 73
ActiveTabName: File Manager
RawURL: /Default.aspx?tabid=73&error=Object+reference+not+set+to+an+instance+of+an+object.&content=0
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://ptcp.performancetrust.com/PerformanceTrust/tabid/80/Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.1)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: b0735d10-9fef-4c03-a83c-c18a797b23f4
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Security.Permissions.Controls.FolderPermissionsGrid.SaveViewState
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Security.Permissions.Controls.FolderPermissionsGrid.SaveViewState() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Page.SavePageViewState() at System.Web.UI.Page.ProcessRequestMain() --- End of inner exception stack trace ---
Source:
Server Name: WEB2

Can anyone offer some assistance?

I figured it out.  There were entries in the folders table for folders that had been deleted.  I guess I need synchronize file and database whenever I make a change throught file manager.  the questions is why the scheduled synchronization did not work.

I have the DotNetNuke.Services.FileSystem.SynchronizeFileSystem, DOTNETNUKE turned on and set to run every hour.  The history log shows synchronizations executing succesfully.  Is there something else that i need to do?