10000796 
Message
In "Default Days for Order Cancellation" field, enter value greater than 0
Diagnosis
In the Document Settings window, on the Per Document tab, in the Default Days for Order Cancellation field, you have entered a value of 0 or less.
Procedure
In the Document Settings window, on the Per Document tab, in the Default Days for Order Cancellation field, enter a value greater than 0.