ERROR - Unable to save page view record.

[AlexG]

I fond this error on admin side (Admin/Help/ErrorLog.aspx)

Severity - Error
Message - Unable to save page view record. Value cannot be null. Parameter name: String
Debug Data - Value cannot be null. Parameter name: String


And find the same error in App_Data/Logs/app.log

ERROR 2009-06-25 07:08:10,090 44119498ms Object a - Unable to save page view record. Value cannot be null.
Parameter name: String
System.ArgumentNullException: Value cannot be null.
Parameter name: String
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.Web.Configuration.HttpCapabilitiesBase.get_MajorVersion()
at CommerceBuilder.Services.c.a(Object A_0, EventArgs A_1)





WHAT IS IT? HOW TO FIX IT ? HELP ME PLEASE!!!

Thanks,
Alex G.