Though I couldn't get much from the pictures. This is what i think is happening.
The Alarm picture shows the alarm is for vcenter object and not for ESXi. You should check the cert expiry detail in vcenter by navigating to administration -> certificate
Next picture shows cert validity for ESXi namely for -esxi02.corp.. and esxi01.corp and issued by the vcenter. There is no problem with your esx certs.
if the response helps, consider marking it as helpful.
Run this one liner from vCenter shell, it will show all certificates in the store, including expiry:
for i in $(/usr/lib/vmware-vmafd/bin/vecs-cli store list); do echo STORE $i; sudo /usr/lib/vmware-vmafd/bin/vecs-cli entry list --store $i --text | egrep "Alias|Not After"; done