I got an email from COMODO. the file is:
- AddTrustExternalCARoot.crt
- COMODORSAAddTrustCA.crt
- COMODORSADomainValidationSecureServerCA.crt
- domain_file_.crt
i set this by directadmin and copy files to private_html folder.
now when i check certificate show error: https://www.sslshopper.com How can I fix? tank you.