Ahh sorry about that! This feedback helped me notice that the hints for the that objective were underbaked. If you reload the page and click "a small hint", I have put in a set of more detailed hints. If you're still stuck email me your game export and I will try to give more help? My email address is on the game's about page.
If this is the translation minigame, the hints there do really help. (I too was stuck for a bit.) You really do want to pay close attention to the ship types that come back as a response from the encoded messages you send out to the other ship and then fill them into the corresponding blanks accordingly. Don't overthink it (I know I did at first).
If you think you have all the words filled in properly but nothing is happening, hint: base64(VGhlIGNvcnJlY3QgdHJhbnNsYXRpb24gb2YgdGhlIGFsaWVuIHdvcmQgImN2aXF6dnhxIiBpcyBub3QgIm5ld2hhcnQiLg==), and spoiler: base64(SXQncyAiZXZlcnN0cm9uZyIu). I suspect there may be a bug in the game that it uses the wrong message at one point.