Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
The operating system my web server runs on is (include version):
My hosting provider, if applicable, is:
I can login to a root shell on my machine (yes or no, or I don’t know):Yes
One of our user is having an issue access this website using Google Chrome - https://www.psasltd.co.uk/
Above website only allow work on Chrome or Firefox. Our end users only have Chrome wb browser but when we trying to access it, this website is Secure but it’s asking for certificate invalid message.
Can someone help to see how to resolve this issue ?
From your first post I deduce Napthens is your employer. It seems your companies proxy does a "Man in the Middle", so it can screen all outgoing connections, for example, for virusses or other bad stuff. It could be there's an issue with the acceptance of the companies own certificate, but that's not something related to Let's Encrypt.
The user you've mentioned, is that an employee too?
Also, you haven't addressed my trouble understanding your request.