Update SSL certificate CN after changing hostname on ESRSVE 3.52.20.08

Hi

we recently had to change the hostname on the ESRS gateway. When we now try to enable esrs on an Isilon cluster, we  receive an error: SSL: certificate subject name 'name' does not match target host name 'IP-address-of-esrs-gw'. 

To solve this issue, we would like to update the CN name with the new fqdn in the ssl certificate on the ESRS gateway.

Does anyone has experiences on how to update the CN?

Thanks