Ok let me tell you in detail.
So this is the script that I did
void OnLeave()
{
SetupLoadScreen("LoadingScreen", "LoadScreen1", 0, "LoadScreen1.jpg");
}
and this is the lang that I did, now I copied only this part of the lang file, since I have a huge lang file.
<CATEGORY Name="LoadingScreen">
<Entry Name="LoadScreen1">Deeper and Deeper I go into the depths of the castle, I keep getting the feeling that I'm going to die, but I don't know the future that I seek....</Entry>
</CATEGORY>
and the image is called "LoadScreen1_1" and the resolution of the image is 700x392 and it's a jpg! So I don't know why it's not appearing in the loading screen, it just stays black and only the words appear!