After 7.4.0 upgrade I receive this error every time i try to open module settings ( it fails) on every page:

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AbsoluteURL:/Default.aspx

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:d6e045e3-567b-4d0c-8b43-7c12f4684c8b

AssemblyVersion:7.4.0

PortalId:8

UserId:1

TabId:396

RawUrl:/Alunni/tabid/396/ctl/Module/ModuleId/996/Default.aspx?ReturnURL=/Alunni.aspx&popUp=true

Referrer:http://www.icgiorgiogaber.gov.it/Alunni.aspx

UserAgent:Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0) like Gecko

ExceptionHash:AI4CC8Gq8lKhXIXJvtRlvw==

Message:Riferimento a un oggetto non impostato su un'istanza di oggetto.

StackTrace:

InnerMessage:Riferimento a un oggetto non impostato su un'istanza di oggetto.

InnerStackTrace:

   in DotNetNuke.Security.Permissions.PermissionProvider.DefaultImplicitRoles(Int32 portalId)    in DotNetNuke.Security.Permissions.Controls.ModulePermissionsGrid.GetEnabled(PermissionInfo objPerm, RoleInfo role, Int32 column)    in DotNetNuke.Security.Permissions.Controls.PermissionsGrid.BindRolesGrid()    in DotNetNuke.Security.Permissions.Controls.PermissionsGrid.OnPreRender(EventArgs e)    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Control.PreRenderRecursiveInternal()    in System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Source:

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:

Nome Server:SDadmin31919910

The Message translation is : Object Reference not set an instance of an Object;