Good morning Ariel,
Sorry for the delay, I have tried the following tests, but none of them work.
I have started a new manual and tried to translate it, but I get the same error, both with several pages and one sentence:
I attach photos:

Then I made only one page with one sentence and it doesn't work either.

Picture of the untranslated sentence:
When I do the translation, the error does not appear, the sentence simply disappears:
See photo:

Finally I tried google translate but it didn't work either. I get the same error.
See photo:
