Custom Player models show up as ERROR On my dedicated server

So pretty much the problem is ive setup force downloader to make clients download the custom model and ive set the player model to be a Theif since its a darkrp server. But when i choose theif it shows up as an ERROR even though when i press C and look at the model it shows up fine. Help?!

EDIT: I got it working now nvm

Mind explaining how you got custom models in the first place, or how you fixed it, so people dont make threads asking same question :3

Mark it as solved.