Starting today, calling the API is giving me a certificate error

Hi, thanks for using Hebcal. We are sorry to hear you are having SSL certificate expired issues.

Unfortunately, we are unable to reproduce this error.

mradwin ~ % curl --compressed -v 'https://www.hebcal.com/shabbat?cfg=json&zip=90210'
*   Trying 45.55.96.251...
* TCP_NODELAY set
* Connected to www.hebcal.com (45.55.96.251) 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-AES256-GCM-SHA384
* ALPN, server accepted to use h2
* Server certificate:
*  subject: CN=hebcal.com
*  start date: Aug 30 00:57:02 2021 GMT
*  expire date: Nov 28 00:57:01 2021 GMT
*  subjectAltName: host "www.hebcal.com" matched cert's "www.hebcal.com"
*  issuer: C=US; O=Let's Encrypt; CN=R3
*  SSL certificate verify ok.
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* Using Stream ID: 1 (easy handle 0x7fdf7980ec00)
> GET /shabbat?cfg=json&zip=90210 HTTP/2
> Host: www.hebcal.com
> User-Agent: curl/7.64.1
> Accept: */*
> Accept-Encoding: deflate, gzip
> 
* Connection state changed (MAX_CONCURRENT_STREAMS == 128)!
< HTTP/2 200 
< server: nginx/1.18.0 (Ubuntu)
< date: Thu, 30 Sep 2021 15:48:57 GMT
< content-type: application/json; charset=utf-8
< content-length: 770
< vary: Accept-Encoding
< etag: W/"17a-Tj/NK7JgcA6OrApV7TdezSRU3LY"
< last-modified: Thu, 30 Sep 2021 15:48:45 GMT
< expires: Sun, 03 Oct 2021 07:00:00 GMT
< content-encoding: gzip
< x-response-time: 6.331ms
< x-varnish: 2229171 133656
< age: 12
< via: 1.1 varnish (Varnish/6.2)
< access-control-allow-origin: *
< accept-ranges: bytes
< 
* Connection #0 to host www.hebcal.com left intact
{"title":"Hebcal Beverly Hills October 2021","date":"2021-09-30T15:48:45.277Z","location":{"title":"Beverly Hills, CA 90210","city":"Beverly Hills","tzid":"America/Los_Angeles","latitude":34.103131,"longitude":-118.416253,"cc":"US","country":"United States","admin1":"CA","geo":"zip","zip":"90210","state":"CA"},"items":[{"title":"Candle lighting: 6:19pm","date":"2021-10-01T18:19:00-07:00","category":"candles","title_orig":"Candle lighting","hebrew":"הדלקת נרות","memo":"Parashat Bereshit"},{"title":"Shabbat Mevarchim Chodesh Cheshvan","date":"2021-10-02","category":"mevarchim","hebrew":"שבת מברכים חודש חשון","memo":"Molad Cheshvan: Wed, 11 minutes and 12 chalakim after 12:00"},{"title":"Parashat Bereshit","date":"2021-10-02","category":"parashat","hebrew":"פרשת בראשית","leyning":{"1":"Genesis 1:1 - 2:3","2":"Genesis 2:4 - 2:19","3":"Genesis 2:20 - 3:21","4":"Genesis 3:22 - 4:18","5":"Genesis 4:19 - 4:22","6":"Genesis 4:23 - 5:24","7":"Genesis 5:25 - 6:8","torah":"Genesis 1:1-6:8","haftarah":"Isaiah 42:5 - 43:10","haftarah_sephardic":"Isaiah 42:5 - 42:21","maftir":"Genesis 6:5 - 6:8","triennial":{"1":"Genesis 5:1 - 5:5","2":"Genesis 5:6 - 5:8","3":"Genesis 5:9 - 5:14","4":"Genesis 5:15 - 5:20","5":"Genesis 5:21 - 5:24","6":"Genesis 5:25 - 5:31","7":"Genesis 5:32 - 6:8","maftir":"Genesis 6:5 - 6:8"}},"link":"https://<a href="http://www.hebcal.com" class="redactor-autoparser-object">www.hebcal.com</a>/sedrot/bereshit-20211002?utm_source=js&utm_medium=api"},{"title":"Havdalah: 7:13pm","date":"2021-10-02T19:13:00-07:00","category":"havdalah","title_orig":"Havdalah","hebrew":"הבדלה"}]}* Closing connection 0
mradwin ~ %