Not sure this is the right forum, but not sure where this would go....

I'm getting the dreaded:

This happens when I try to logon with my admin login. (It also happens if I try to change the password on the admin login or just about anything else with the user account admin) I suspect it may have occurred after I installed the blog module.   I had the problem with another logon, but I resolved the problem by deleting the the user name and readding it.  Can't do that with the installed "admin" logon.  System won't allow it; probably for good reason.  Ideas?

Here is the detail log:

AssemblyVersion: 04.04.00
PortalID: 0
PortalName: St. Marys TEST Website
UserID: -1
UserName:
ActiveTabID: 58
ActiveTabName: Discussions
RawURL: /Discussions/tabid/58/ctl/Login/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.ouramen.org/Discussions/tabid/58/ctl/Login/Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; .NET CLR 2.0.50727)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: a6302618-98a6-4945-84e6-7cfa592ef3a7
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Security.Membership.AspNetMembershipProvider.UserLogin
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.Membership.AspNetMembershipProvider.UserLogin(Int32 portalId, String username, String password, String verificationCode, UserLoginStatus& loginStatus) at DotNetNuke.Entities.Users.UserController.ValidateUser(Int32 portalId, String Username, String Password, String VerificationCode, String PortalName, String IP, UserLoginStatus& loginStatus) at DotNetNuke.Modules.Admin.Security.Signin.cmdLogin_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.Button.OnClick(EventArgs e) at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
Source:
Server Name: INFOSAIC-1009

need more information?  let me know...

THANK YOU!

Thanig,

It looks like something in your admin account is invalid. The easiest is to delete the account. It can be deleted, as long as you have host access to your site:

• create a new user and add it to the security role of "Administrators".
• go to admin > site settings and change the portal administrator to the new user you just created (it's hidden somewhere down the page)
• go to admin > users and delete the admin user account

(The reason the system didn't allow you to delete the admin account is because it is selected as the administrator of the portal).

Good luck!