3D weapon model not loading (purple and black block)

Hello, I have a problem where I am making a 3D dagger in Blockbench as a Java block. The name is in lowercase, the texture too, it's within the angles, and I tried using Minecraft: everything as mentioned in the following post: MCreator Wiki.

But it still doesn't work; the broken purple and black texture appears. I thought it might be the height, so I made it smaller, but that didn't help either. Does anyone know what could be happening and what I should do to fix it?