# Error with Docker Install

**URL:** <https://forum.duplicati.com/t/error-with-docker-install/15884>\
**Category:** Support\
**Created:** [March 13, 2023, 10:10pm UTC](https://forum.duplicati.com/t/error-with-docker-install/15884 "2023-03-13T22:10:35Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![ts678](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/t/8491ac/32.png) [@ts678](https://forum.duplicati.com/u/ts678)\
**Post date:** [March 14, 2023, 2:40pm UTC](https://forum.duplicati.com/t/error-with-docker-install/15884/2 "2023-03-14T14:40:46Z")

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Might be [BoringSSL Bug: Cannot connect to websites using let’s encrypt SSL certificates #21253](https://github.com/mono/mono/issues/21253).  
[Old Let’s Encrypt Root Certificate Expiration and OpenSSL 1.0.2](https://www.openssl.org/blog/blog/2021/09/13/LetsEncryptRootCertExpire/) adds background to mono issue.  
Because mono [has no plan to change their handling](https://github.com/mono/mono/issues/21233#issuecomment-945860099), changing certificate store is the workaround.  
Old Debian is image’s base, and [ca-certificates](https://tracker.debian.org/pkg/ca-certificates)/[20211004](https://launchpad.net/debian/+source/ca-certificates/20211004) (in `testing` and beyond) would fix this.  
Until Duplicati picks that up or fix propagates further into the old Debian releases, maybe use this:

> [@Http send report errors / duplicati-monitoring](https://forum.duplicati.com/t/http-send-report-errors-duplicati-monitoring/13157/45):
>
> The solution for the official Duplicati Docker image is the same as posted above for Debian. You want to remove this file from within the container:
> 
> ```plaintext
> /usr/share/ca-certificates/mozilla/DST_Root_CA_X3.crt
> 
> ```

I would guess that you then need to run `update-ca-certificates`, but you could test that theory.

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