Legality of actions of GIS employees

Hello! The court decision in the case of a traffic violation was issued on 21.05.2019. The fine and court costs were paid on 29.05.2019. The application with receipts was submitted to the court on 14.06.2019. However, on 21.01.2020, the state executive service imposed a lien on the account and property — this became known from bank employees. No letters or notifications from the executive service were received. During a conversation with the executor, it turned out that there are no claims regarding the payment of the fine and costs, but they demand 516.56 UAH for opening enforcement proceedings (for two proceedings). The reason is the late notification of the court about the payment: by the time the application was submitted, the case had already been sent to the state executive service. How lawful are such requirements? Was it really necessary to notify the court about the payment within a certain period? And how to act correctly in this situation?