A newly deployed Web Service acts weird on a production environment when a hit is received at the Web Service.

This is the message I am getting in the Event Viewer:

"The 'group' attribute is invalid. Enum must be one of High, Low"

The Web Service responds accordingly however there is an error in the Event Viewer and this forces the IIS Worker Process for the Web Service to reload every time. So, as I have initialization procedure that gets loaded on the first hit, this makes it slower than expected as every hit is now initializing the worker process all over again.

I have this additonal information:

HRESULT 0x80070585
PhysicalPath \\?\UNC\MyNasDrive\MyNasShare\WebService\web.config
Type 3
Message The 'group' attribute is invalid. Enum must be one of High, Low
LineNumber 6
PreviousLine soapExtensionTypes
ErrorLine add type="Framework.TraceExtension,Framework" priority="1" group="0"/
NextLine /soapExtensionTypes

Anyone would know what could be the cause here?