Issue Customize Plesk URL

[zihniates]

Hi,

I purchased a vps server and licensed plesk web host edition from Contabo. I want to give my clients a different panel address, but I getting an SSL certificate error.

I check SSL certs.

Certificate for securing Plesk
Lets Encrypt certificate from server pool. [Change]
Certificate for securing mail
Lets Encrypt certificate from server pool. [Change]

I change certificate for securing Plesk, letsencrypt cert from server pool to new panel url subdomain ssl's. but still i keep getting invalid ssl security certificate error.
How can i fix this error?