Thanks for reaching out to us. Im not too sure if this is an issue with the OpenHIM or rather with Letsencrypt not being able to validate the domain the certificate is meant for. Based on the error shown in red it highlights that the challenge failed due to the certificate not being able to be validated. This could be related to the /.well-known/acme-challenge not containing the file to validate the certificate, or an issue with the DNS not being configured correctly.
Ive posted a few quick search links that might help you in the right direction
**Martin Brocker **
Tel: +27 21 701 0939
Jembi Health Systems | Cape Town
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