Could not get nonce, let's try again when using acme

When I am using this command to generate a certificate on CentOS 7.6: acme.sh --issue --dns dns_cf -d poemhub.top -d *.poemhub.top -k ec-256 shows this error: [Sun Jul 11 23:09:28 CST 2021] Using CA: https://acme.zerossl.com/v2/DV90 [Sun Jul 11 23:09:29 CST 2021] Multi domain='DNS:poemhub.top,DNS:*.poemhub.top' [Sun Jul 11 23:09:29 CST 2021] Getting domain auth token for each domain [Sun Jul 11 23:09:30 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:31 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:31 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:31 CST 2021] Could not get nonce, let's try again. [Sun Jul 11 23:09:34 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:35 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:35 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:35 CST 2021] Could not get nonce, let's try again. [Sun Jul 11 23:09:39 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:39 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:39 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:39 CST 2021] Could not get nonce, let's try again. [Sun Jul 11 23:09:44 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:44 CST 2021] Create new order error. Le_OrderFinalize not found. [Sun Jul 11 23:09:44 CST 2021] Please add '--debug' or '--log' to check more details. [Sun Jul 11 23:09:44 CST 2021] See: https://github.com/acmesh-official/acme.sh/wiki/How-to-debug-acme.sh where is going wrong and what should I do to fix it? what I have tried to upgrade the newest version of acme.sh: [root@izbp19pke6x0v6ruecuy1yz poemhub.top_ecc]# acme.sh --upgrade [Sun Jul 11 23:09:19 CST 2021] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35 [Sun Jul 11 23:09:21 CST 2021] Already uptodate! [Sun Jul 11 23:09:21 CST 2021] Upgrade success!