[Решено] Mapping languages for automatic translation

Background of the issue:
I am trying to automatically translate products using WPML. I have purchased 40,000 credits for this purpose.

Symptoms:
I can't translate anything. I keep receiving the error message: 'Your default language, Dutch, must be paired with a supported language to use automatic translation.' When I press the 'Link the language' button, it shows that everything is already linked.

Questions:
Why does the 'Link the language' button show everything is linked but the error persists?