Having incorrect Regional settings on the server can cause various errors in the web interface and in the product logs (any product) with errors referencing invalid Int32 strings, invalid input string, and/or invalid DateTime entries.
Any of the NetQoS Products
Follow the steps below:
sLongDate = dddd, MMMM dd, yyyy
sShortDate = M/d/yyyy
sCountry: United States
You might also reference this site for any further registry changes that need to be made to resolve errors. The above steps should be all that is needed in most cases: