wavepub 404 issue

➜  work curl -v https://dl.wavpub.com/item/66f7a8733fb43ad38a902c7314b6a709.m4a
*   Trying 221.195.206.1...
* TCP_NODELAY set
* Connected to dl.wavpub.com (221.195.206.1) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
*   CAfile: /etc/ssl/cert.pem
  CApath: none
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-AES128-GCM-SHA256
* ALPN, server accepted to use http/1.1
* Server certificate:
*  subject: CN=dl.wavpub.com
*  start date: Jun 17 00:00:00 2020 GMT
*  expire date: Jun 18 12:00:00 2021 GMT
*  subjectAltName: host "dl.wavpub.com" matched cert's "dl.wavpub.com"
*  issuer: C=CN; O=TrustAsia Technologies, Inc.; OU=Domain Validated SSL; CN=TrustAsia TLS RSA CA
*  SSL certificate verify ok.
> GET /item/66f7a8733fb43ad38a902c7314b6a709.m4a HTTP/1.1
> Host: dl.wavpub.com
> User-Agent: curl/7.64.1
> Accept: */*
>
< HTTP/1.1 404 Not Found
< Content-Length: 0
< Connection: keep-alive
< Server: nginx/1.14.2
< Date: Tue, 12 Jan 2021 00:53:25 GMT
< X-Cache-Status: MISS from KS-CLOUD-JH-MP-01-33
< X-Cache-Status: MISS from KS-CLOUD-CS-UN-11-33
< X-Cache-Status: MISS from KS-CLOUD-CANGZ-UN-04-08
< X-Cdn-Request-ID: 64e6ff958362c738de2bad203b16983b
<
* Connection #0 to host dl.wavpub.com left intact
* Closing connection 0