The public key certificate retrieved from server is not recognized as originating from a trusted source this it the error! How to fix this?

[#1]

Hi Team,

I am looking to access our production link using workbench, but unfortunately Certificate error is raising. For clear details please refer attached screenshot. Please give a proper suggestion or solution to solve this error. We are currently working on ES 8.x to ES4 upgrade. Please consider this on priority and provide your response ASAP.

Thanks,

Chaitanya

[#2]

This should help : http://help.adobe.com/en_US/livecycle/11.0/InstallWorkbench/WS624e3cba99b79e126ac9118f12f365f04a9-7f...

Thanks,

Wasil