Tax code Invalid in Tax code Determination Screen

1.I am Doing default tax code updation in tax code determination Screen While i am trying to Do, i am getting below error . I am using Sap B1 9.1 PL05 Version

.After i assign i try to update but system always show the Error.


"Invalid Data [Tax Code Determination - Tax Code][line: 41] [Message 80401-9]"