Falling back

Please read the documentation. Specifically Working with POT files in Loco Translate.

Thank you so much.
So, this happens because the theme owner did not create a file. Is it correct ?

Or they created one with the wrong name so it couldn’t be identified. I can’t tell you which is the case, because you have not posted the theme.

This happens when Loco Translate cannot extract strings from their source code. If there was a POT file, that would be a non-issue.

Okay. Thank you very much again.