ERROR 403: Forbidden when running "./btcputil/fetch-params.sh"

[lauux]

Description

The error occurred with the error code 403 when I ran the ./btcputil/fetch-params.sh to connect to params.btcprivate.org. Guessing it might be blocked by the cloudflare ddos protection, I don't know how to deal with it.

The log is below:

Bitcoin Private - fetch-params.sh

This script will fetch the Bitcoin Private (and Zcash) zkSNARK parameters, and verify
their integrity with sha256sum. These parameters are identical to those for
both Zclassic and Zcash.

If they already exist locally, it will exit now and do nothing else.
Retrieving: https://params.btcprivate.org/sprout-proving.key
./btcputil/fetch-params.sh: line 27: sw_vers: command not found
--2022-04-13 06:05:15--  https://params.btcprivate.org/sprout-proving.key
Resolving params.btcprivate.org (params.btcprivate.org)... 2a06:98c1:3121::3, 2a06:98c1:3120::3, 188.114.96.3, ...
Connecting to params.btcprivate.org (params.btcprivate.org)|2a06:98c1:3121::3|:443... connected.
HTTP request sent, awaiting response... 403 Forbidden
2022-04-13 06:05:15 ERROR 403: Forbidden.

Bitcoin Private Daemon version v1.0.15-g6af8ce106
Operating System: Ubuntu 18.04 x64