Sales tax data in the posting term is not consistent

Hello!

I'm using the module RE-FX for contracts management, and when added new conditions in the contract, the following error occurs:

Sales tax data in the posting term is not consistent

Message no. RECD076

Diagnosis

The sales tax data in the posting term is inconsistent.

Procedure

Switch to maintenance of posting terms and correct all errors that are shown there.

Has anyone had this problem?

Could you tell step by step solution?

Thank you.

Lucas