Individual or Wildcard SSL which one is better

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7

If you have a single configuration file with all vHost - definitions, you may edit the configurations directly.

Look there:

Another user has a self signed certificate, created a certificate with

certbot certonly

then changed

SSLCertificateFile /etc/pki/tls/certs/localhost.crt
SSLCertificateKeyFile /etc/pki/tls/private/localhost.key

with the ne files -> that worked.