Since we have installed DSTablocalizer I get randomly following General Exception:

AssemblyVersion: 04.07.00
RawURL: /Default.aspx?TabID=725&LangID=4&a=gpJivezmVhM=&language=fr-CH,fr-CH,fr-CH
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://shop.xxx.ch/Default.aspx?TabID=724&langID=4
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: f836ab79-c741-45f8-bd21-5b82648ea947
InnerException: Error Detecting locale: Info= Step 1
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Globalization.CultureTableRecord.ValidateCulturePieceToLower
StackTrace:
Message: System.Exception: Error Detecting locale: Info= Step 1 ---> System.ArgumentException: The name 'fr-CH,fr-CH,fr-CH' contains characters that are not valid for a Culture or Region. Parameter name: name at System.Globalization.CultureTableRecord.ValidateCulturePieceToLower(String testString, String paramName, Int32 maxLength) at System.Globalization.CultureTableRecord.GetCultureTableRecord(String name, Boolean useUserOverride) at System.Globalization.CultureInfo..ctor(String name, Boolean useUserOverride) at Delisoft.DNN.PageBases.MyLocale.d(TabLocalization_OptionsInfo A_0, LocaleCollection A_1) at Delisoft.DNN.PageBases.MyLocale.d() --- End of inner exception stack trace ---
Source:
Server-Name: DNN02

From frontend no malfunction is visible.