No free Yandex Translate API anymore?

Seems there will be no free Yandex Translate API keys anymore. Here is what I’ve got for my existing API key:

code: 408
message: Maximum monthly translated text volume exceeded

I have used this key just a couple of times in August for testing purposes, so the monthly translated text volume can not be exceeded.

When I’ve got this message, I’ve registered a new Yandex account, applied for an API key and got the following message:

An error occurred while getting the key

Looks like no free Yandex Translate API anymore…