Thanks IGN. This project is currently on hold; I began it circa January 2021 when I didn't have a lot of hacking experience, and thus the game proved itself to be kinda difficult to hack. I guess the download link expired or something, as it hasn't been worked on in a while. If you want to help me with my stuff you may PM me.
Anyway, here's a backup of the latest version, dated 26/03/2021. Lots of stuff unfinished and untranslated. At least this served me as experience so I could learn the do's and don'ts of romhacking, so at least I could try again in another project. Besides, it was very fun to do this, even if I could never finish it. In the download link below is a patch, with no roms, so you may have to search for it by yourself. Copy paste the link into the browser's search bar to download.
I now have another project I'm progressing secretely and I've learnt from my mistakes, so I can retry.https://lusofonia.000webhostapp.com/ct4/ct4.zip