error:0A00010B:SSL routines::wrong version number

The CMS Questions
1

We have an api call for dynamic option entries in a select field, that causes the given error

day:
type: select
required: true
options: api
api:
url: ‘{{ site.url }}/get-days/{{ page.parents.last.from }}/{{ page.parents.last.to }}’
text: ‘{{ item.toDate(“d.m.Y”) }}’
value: ‘{{ item }}’

We have 2 instances of the website running. one staging instance with a Let’s encrypt certificate (no errors) and one live instance with a certificate from Trusted Certificate Service - GÉANT Security (given error).

Are there any known issues with “non-standard” certificates or infos how to adress them in the config?

according to this guide remote | Kirby CMS, the given opportunities are also not working.

2

Hm, I’m pretty sure this has nothing to do with Kirby.

Googling the error (what you should also do), the first search result gave me this: curl: (35) error:0A00010B:SSL routines::wrong version number · Issue #9931 · curl/curl · GitHub, so might be worth investigating what PHP version with what curl version you are running. Maybe try curl on the CLI as well.

There are also some other search results…

3

Thank you for your reply.
you’re totally right, the error is caused by curl. The HTTPS protocol is missing for curl on the deployment server.