I think I disabled Remote Access: how do I re-enable?

Plex Media Server Remote Access
1

When i first installed PMS, I had an error message that I cannot now exactly recall saying I had some problem with remote access. In the process of trying to fix it, I think I disabled Remote Access.

Now I have my media library loaded and I want to play music files on Sonos. All the posts I’ve read indicate I need to enable remote access using Settings > Server > Remote access. I do not see the Server option in my settings. What should I do?

Server Version#:
Player Version#:

2

Should be as shown in the pic

Remote
Remote1050×476 129 KB

3

After uninstalling and reloading PMS, the Remote Access option showed up again on my sidebar. I now have fixed the port forwarding and it all seems to be working smoothly now. Thanks for your assistance.