10000248 
Message
Day interval cannot be negative
Diagnosis
In the Balance Sheet Revaluation window or the Profit and Loss Statement Revaluation window, you have selected Posting Date or Due Date as the revaluation method. In the Average Rate from Interval (in Days) field, you have entered a negative number.
Solution
In the Average Rate from Interval (in Days) field, enter a whole number in the range 0 to 31.