The recent expiration of root certificates has caused some issues with older Macs running 10.10 Yosemite and 10.11 El Capitan. This is not an issue with NRGship, it is due to the fact that updates for these older operating systems have not been provided by Apple since 2018 so they cannot connect securely to modern day websites.
If you have a 2009 vintage Mac, you could also update to 10.12 macOS Sierra.
We do realize that updates may not be possible on older hardware. With a few simple steps you can edit your security settings to allow access to the nrgsoft website on these older computers as a possible workaround. In the video below we’ll show you how you can go into Safari and enable trust settings.