Bugged Custom Helmet Textures

I made a crown model in Blockbench, which I'm trying to use to make a helmet. I have all other armor pieces toggled off. The model in Blockbench looks like this: https://gyazo.com/4b101a628bc87ec521dde0c46ac64063

And the texture of it is here: https://gyazo.com/50ae3c1a4271adc01a224925a2e88609

But when I import it into MCreator and select it as the model for the helmet along with the texture, it looks like this:

https://gyazo.com/b209ee54fb6e76a6e2a30d6186fea96b

I don't know how to fix this without having to possibly remap or redo all of the textures, which would be really tedious. Does anybody have any ideas how to fix this otherwise?