How to combat a court judgement in favor of client for incurred losses

We had a commercial case from our client after he breached the agreed completion period. He claimed more than what he has paid as an advance and we have proved that the work is done close to the advance received.

The court has given the judgement to pay back part of the advance received against the work completed but we are not happy with the judgement as we have incurred losses due to the extended execution period.

During the court sessions, we have defended ourselves for the claims made by the client and we haven't been to the court of cassation.

Referring to the res judicata, can we open a new case for the damages incurred along with the loss of profit for the termination of the contract as he delayed the project beyond the agreed execution period?

We have even delivered the required materials to the site for execution. He has blocked our license and in the interim, can we request the court to settle the payment to the client in small monthly instalments?