I recently created a new role group and moved previously created security roles into the new role group. I then attempt to login into one of my portals, like I have done many times successfully and I receive a “Login failed” error.

So I log in as Host and open MPUS-Xtreme

Here is my Current MPUS-Xtreme Configuration
Cross-domain SSO configuration (Multiple parent portals)
4 parent portals, all assigned to a single shared area

Each portal has the same configuration:
- Share All Users
- Share all roles and groups
- Share all User In Role assignments

When I check the Share Role Group section, the newly created role group is listed, however the checkbox is clear (which makes sense). So I select the checkbox and then at the bottom of the page I click Update. Then I get the following error:

A critical error has occurred.
Object reference not set to an instance of an object.

Here are the details of the log entry:
AssemblyVersion: 5.6.2
PortalID: 0
PortalName: *******
UserID: 1
UserName: host
ActiveTabID: 232
ActiveTabName: DNNMasters MPUS-Xtreme
RawURL: /Host/DNNMasters MPUS-Xtreme/tabid/232/portalid/0/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.******.com/Host/DNNMaste...fault.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.3; .NET4.0C; MS-RTC LM 8; .NET4.0E; Zune 4.7; Creative AutoUpdate v1.40.04)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 1b7e044a-80da-4025-86dd-1cc43a771901
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DNNMasters.MPUS.X.Engine.Engine.RoleToAddList
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 DNNMasters.MPUS.X.Engine.Engine.RoleToAddList(ArrayList roleList, Int32 PortalID) at DNNMasters.MPUS.X.Engine.Engine.ShareGlobalRole(Int32 PortalID) at DNNMasters.MPUS.X.UI.UserControls.SAPortalEdit.cmdUpdate_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
Source:
Server Name: WEB

Do you have any idea what happened?
And can you offer a solution?

Many thanks in advance

RollyP

Host access would help. Please email directly to support@
What version of MPUS-X are you running ?

MPUS-X - 2.1.22
Cannot give Host access as this is an Ecommerce Site

Best way would be to restore from backup to a state before the changes, disable the sharing, move roles, enable sharing again.

Unfortunately restoring is not an option at this point. (But can be a last ditch effort)

What if I were to disable sharing, then uninstall MPUS-X, delete all associated files and then do a clean install of MPUS-X and then enable and reconfigure sharing.

Would that work?

Problem is not in uninstalling the module but most probably something went wrong after moving roles between groups.
I'll be testing locally in few minutes to see if I can replicate this problem, but it's possible that the internal module information is different than actual state.
Please try the following:
1. backup database
2. un-share portals
3. verify that the users and user-roles are correct
4. share again

I think it would be best to work on a copy of the portal, not on live site.

All working again
Thank you very much