Background of the issue:
I am trying to use the 'Pay as you go' translation feature for the fastest possible translation. The translation process stopped, and this affects the visibility on our live site. The issue can be seen at the following link: https://wpml.org/account/manage-credits/
Symptoms:
The translation process stopped unexpectedly. I expected the translation to be completed, but instead, it stopped.
Questions:
Why did the translation stop?
How can I resume the translation process asap?