Certificate problem

Can’t create workers. Suspect certificate expiration.

Expected outcome:
Able to create workers

Foreman and Proxy versions:

Foreman Version 1.14.3
INFO – : WEBrick 1.3.1

Foreman and Proxy plugin versions:

Distribution and version:

Other relevant data:
Seen in /var/log/foreman-proxy/proxy.log:
Version: 3 (0x2)
Serial Number: 2 (0x2)
Signature Algorithm: sha256WithRSAEncryption
Issuer: CN=Puppet CA: seki81foreman.rnd.ki.sw.ericsson.se
Not Before: Feb 14 12:54:59 2017 GMT
Not After : Feb 14 12:54:59 2022 GMT
Subject: CN=seki81foreman.rnd.ki.sw.ericsson.se
Subject Public Key Info:
Date on server is May 2 2022.
So I suspect the certicate has expired.
How do I go about renewing it?