Beginner serve issue

When I try to serve the model I downloaded, I get the following error. What am I doing wrong?

:zap: ~ llitgpt serve -c checkpoints/microsoft/phi-2/model_config.yaml
usage: litgpt [-h] [-c CONFIG] [–print_config[=flags]]
{download,chat,finetune,pretrain,generate,convert,merge_lora,evaluate,serve} …
error: Validation failed: Subcommand ‘serve’ does not accept nested key ‘hf_config.name’