Thanks for the report.
The error has been found and fixed.
But you'll have to download the build again.
I made a mistake while archiving files during the compilation process.
Did you install the new version of the game over the old one? Or did you run the new build and delete the previous one?
Because I don't have this problem. The error you're showing doesn't reproducible for me. The Bulgarian language works correctly, and the phrase that supposedly appears twice in the translation is only present once.
Try deleting all builds of the game and redownloading.
To return to the language selection again, delete the "persistent" file in the saves folder and also here: C:\Users\YOUR USER NAME\AppData\Roaming\RenPy\Angelslove-1750593179