Try to use openSSL commands to get the cert file and key file from .pfx file below are the commands openssl pkcs12 -in [yourfile.pfx] -nocerts -nodes -out [keyfile.pem] Extract the certificate: openssl pkcs12 -in [yourfile.pfx] -clcerts -nokeys -out [certfile.pem] then try to install on the server and give chmod 775 permissions to the file and backup the previous .cert and .key files and restart the server