1809   Group separator must be followed by a digit

Cause

This error occurs when number and currency parsing methods of the primitive types expect to find a digit following the group separator character; for example, if the source parameter passed to the parseNumberWithCurrentLocale method of the Decimal primitive type is "123,." and the current locale expects the thousands receiver to be followed by a digit rather than the decimal point.

Action

Change your application logic to handle this invalid input.