That one is a mistake/laziness on my part. I used KOTOR Tool instead of KGFF, so the name got converted to a local string instead of using the TLK reference. I'll make an updated version of the mod that addresses it at some point, thanks for pointing it out.
If you want to fix it on your end, you'll first need a couple of tools - KGFF and ERFEdit.
Go to the game's install folder and look in the Modules folder. Find sta_m45ad.mod and open it with ERFEdit. You should see something like this:
Select the eight files dp_plc_jedifuel1.utp through to dp_plc_jedifuel8.utp and simply drag and drop them outside the ERFEdit window (for example, onto your Desktop). You can now close ERFEdit.
One at a time, open the UTPs in KGFF. Scroll down until you see the "LocName" field and click on it to select it. It should look like this:
With LocName selected, look over to the side panel on the right:
In the StringRef field where it says -1, click in that field and delete the -1, then enter 35430, like so:
Now back on the left, select the LocalString line underneath the LocName line, right click on it and choose Delete String:
After it is deleted you can save the file from the menu up the top (File -> Save). Close the file and repeat the process for the other seven UTPs. Once all the UTPs are edited and saved, cut and paste them into the game's Override folder. Note that in order for this to show up in-game, you'll need to load a save before entering the final Star Forge level with Malak. Any save already inside there will have stored the UTP data in the save itself.
The pop-up messages that show when you click on them should also be in English, but it seems like you already changed those? Those ones are added TLK strings. Since those are custom strings, other people would need to supply translated TLK strings for other languages. If you are interested in doing this for Russian, you can look at editing append.tlk in the mod's tslpatchdata folder and sending it to me.