how to create ca file i`ve deleted without any problem for my certificate

i get ssl certificate and i think unfortunately i`ve deleted server.ca file on my server.
how can i create or retrieve this file without problem for my certificate?

Hi

If you have lost the Private Key you will need to create a new one and ask support to generate a new certificate.

Submit a ticket with the order number and new CSR here:

https://support.comodo.com

Explain to them that you lost the private key and need the certificate reissued.

Garry