I am using DNN 6 with Forum 5.0.3 and it has been working great, but recently I discovered that i couldn't add new forums.
When I try to add a new forum I just get:
A critical error has occurred. An unexpected error has occurred
If I check the event viewer, the message the system throws is this:
ActiveTabID: 131
ActiveTabName: Forum
RawURL: /Forum/tabid/131/ctl/ForumEdit/mid/637/groupid/3/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: https://www.spacenet.no/Forum/tabid/131/ctl/ForumEdit/mid/637/groupid/3/Default.aspx
UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 1dbcd7b9-2f47-4d44-9350-36d6dccf281a
InnerException: Input string was not in a correct format.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Number.ParseSingle
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Input string was not in a correct format. ---> System.FormatException: Input string was not in a correct format. at System.Number.ParseSingle(String value, NumberStyles options, NumberFormatInfo numfmt) at System.Single.Parse(String s, IFormatProvider provider) at DotNetNuke.Modules.Forum.ACP.ForumEdit.cmdAdd_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: