V šifrantu vrst zaslužkov nimate kreiranega tipa zaslužka Razlika do minimalne plače!
IRIS 3396 - The earnings type »Difference to minimal wage« not set in Earnings type register!
The program reports that the earnings type Difference to minimal wage is not set in the register of type.

Solution
In the register of earnings types create the earnings type Difference to minimal wage.