In few vxAG, we could see an issue with AG WebUI and we will not be able to turn it on.
While we execute the commands to turn on the WebUI, we could see the following errors.
This issue is caused by webui pem. It only occured on some new vxAG, not each xvAG.
As per the Bug#91114 Comment#11,
When this issue happened, please run "clear webui ssl pem". And in some cases, you also need to reboot after that