404 error when calling NVIDIA NIM API - personal account

Hello NVIDIA team,

My personal account is getting 404 errors when calling the NVIDIA NIM API.

Endpoint: https://integrate.api.nvidia.com/v1/chat/completions
Model: deepseek-ai/deepseek-r1

Account email: lz1552291@qq.com
API Key prefix: nvapi-a3H-1X

Please help check my account configuration. This is for personal development only.

Thank you.