"apt update" return "Certificate verification failed" for https://packages.zorinos.com/apps

General Help
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I already try sudo apt update and using the Software Updater, the error message still remain.
Tried running curl https://packages.zorinos.com/stable return the similar error (curl: (60) SSL certificate problem: certificate has expired).
Listing apt list ca-certificates return ca-certificates/focal-updates,focal-updates,focal-security,focal-security,now 20210119~20.04.2 all [installed].