Hi Trying to install 3cx on Windows Server 2012r2 and got stuck on uploading certificate key file. I use my own FQDN and wildcard SSL exported from another server. Certificate file is uploaded successfully (.crt) but certificate key file refuses to upload .pfx file. The same key file imports fine in Certificates MMC on the server so I know it works. Your guide here: https://www.3cx.com/docs/fqdn-ssl-certificate-v15/ is missing information about "combined pfx file" - there is a heading but no info. How can I upload .pfx?