Can't add contents to Modules created by another user

Hi

We have created a custom module for extending the 'News'  using Module Builder. But the system is not allowing to add contents by other users. (Its working fine for the user who created it)

Please see the error message below  from the log file.

Thanks

Anil

Timestamp: 3/6/2014 3:40:35 PM

Message: HandlingInstanceID: 6fa75169-ed3c-47ce-b18c-42abec83ea98
An exception of type 'System.NullReferenceException' occurred and was caught.
-----------------------------------------------------------------------------
03/06/2014 15:40:35
Type : System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Message : Object reference not set to an instance of an object.
Source : Telerik.Sitefinity
Help link : 
Data : System.Collections.ListDictionaryInternal
TargetSite : Telerik.Sitefinity.Web.UI.ContentUI.Contracts.IContentViewDefinition GetDefaultMasterView()
HResult : -2147467261
Stack Trace :    at Telerik.Sitefinity.Web.UI.ContentUI.ContentViewControlDefinition.GetDefaultMasterView()
   at Telerik.Sitefinity.Web.UI.ContentUI.ContentView.DetermineCurrentViewName()
   at Telerik.Sitefinity.Web.UI.ContentUI.ContentView.CreateChildControls()
   at System.Web.UI.Control.EnsureChildControls()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Additional Info:

MachineName : W7DEV7GWTKQ1
TimeStamp : 3/6/2014 3:40:35 PM
FullName : Telerik.Sitefinity.Utilities, Version=6.3.5000.0, Culture=neutral, PublicKeyToken=b28c218413bdf563
AppDomainName : /LM/W3SVC/5/ROOT-9-130385930128078830
ThreadIdentity : admin
WindowsIdentity : NT AUTHORITY\NETWORK SERVICE
Requested URL : local.www.aaaaa.org/.../MPS-Modules-News-dashboard


Category: ErrorLog

Priority: 0

EventId: 90000

Severity: Error

Title:Enterprise Library Exception Handling

Machine: W7DEV7GWTKQ1

App Domain: /LM/W3SVC/5/ROOT-9-130385930128078830

ProcessId: 9368

Process Name: c:\windows\system32\inetsrv\w3wp.exe

Thread Name: 

Win32 ThreadId:8756

Extended Properties: 
----------------------------------------
 

Hello Anil,

I'm sorry to hear about the issues you're experiencing with your custom modules.

Can you confirm that configuration files have not been modified (under App_Data/Sitefinity/Configuration) either manually or by changing a setting under the Administration backend section, the web.config has been changed, or some of the values in the DB have been modified manually.
In order to make sure we're giving you the best advice we'll need to collect some additional information, namely:

1. Which Sitefinity version you are using?
2. Have you performed an upgrade and can you reproduce this on a brand new project as it is very important to isolate the source of your problem (if you can reproduce this on a brand new project, please provide us the steps)?
3. Did the module worked at some point?

Hi Vassil Vassilev,

 We solved the issue and it was with configuration file.

thanks

Anil 

Can you please post what you fixed in the config file to solve this issue as I am experiencing the same issue?