example.com works fine except www.example.com does not. How do you fix this.
In your DNS. Forward www.example.com to example.com
how long can NodeBB run?
Until it runs out of memory.
What if the computer is shutdown, does the website still run?
@01 "it won't open" isn't very descriptive. What is it actually doing? Screenshots are very helpful to convey that info.
What is your nginx config? Where did you get your https certificates? Have you been following a guide, and if so, which one?
@abhinov-singh if you select Gmail in the service list, the custom service fields will disappear because those settings no longer apply. All you then need to do is put the Gmail username and password into the two fields. You already have a Gmail username and password in those fields in the screenshot, so I'm unsure where the confusion is.