Network error: NanoGPT TEE/qwen3.5-397b-a17b: error sending request for url (https://api.nano-gpt.com/v1/tee/attestation?model=TEE%2Fqwen3.5-397b-a17b&nonce=4cb97e7267a25f6891cfde46835dfaa45d407a3bde4b06ba34012a411240eeda)