Congratulations!
You need to log in
https://tppr.me/ReUVtThere you can find logs for Nova Poshta, they are usually called like this: novaposhta-2023-05-30.log
In the order, press the button where the TTN is created.
And answers from the NP should be added to the logs
We are tickled by a line like:
https://tppr.me/JGs7zWhere should errors be written. The error itself can then be viewed on the NP portal here:
https://developers.novaposhta.ua/listerrorscodes?page=1&quality=2244 and correct what will be wrong.
You can send it here or see for yourself.