Hello @Yuting W.
Please follow the instructions to generate the CSR and install the SSL Certificate for the Web Dashboards.
Note: Root and intermediate certificates also need to be imported if the keystore is new.
Make sure to restart the Frontend and Backend Services once the above activity has been done.
I got an error saying
keytool error: java.lang.Exception:Failed to establish chain from reply
After i insert back the cert file. Not sure if this is because i did not import the root and intermediate certification? I don't know where i can find those