Thanks, it looks like I'm back up and running.

@PitaJ ./nodebb build does not seem to be a valid option:

root@myserver:/var/www/html/forum/nodebb# ./nodebb build

Welcome to NodeBB

Usage: ./nodebb {start|stop|reload|restart|log|setup|reset|upgrade|dev}

start	Start the NodeBB server
stop	Stops the NodeBB server
reload	Restarts NodeBB
restart	Restarts NodeBB
log	Opens the logging interface (useful for debugging)
setup	Runs the NodeBB setup script
reset	Disables all plugins, restores the default theme.
activate	Activate a plugin on start up.
plugins	List all plugins that have been installed.
upgrade	Run NodeBB upgrade scripts, ensure packages are up-to-date
dev	Start NodeBB in interactive development mode

I tried ./nodebb upgrade, and got:

root@myserver:/var/www/html/forum/nodebb# ./nodebb upgrade
1. Bringing base dependencies up to date... 
Error: Command failed: /usr/bin/env npm i --production
npm ERR! Linux 4.6.5-x86_64-linode71
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "i" "--production"
npm ERR! node v7.0.0
npm ERR! npm  v3.10.8
npm ERR! path /var/www/html/forum/nodebb/node_modules/tmp-nodebb-theme-2600hz
npm ERR! code EISGIT

npm ERR! git /var/www/html/forum/nodebb/node_modules/tmp-nodebb-theme-2600hz: Appears to be a git repo or submodule.
npm ERR! git     /var/www/html/forum/nodebb/node_modules/tmp-nodebb-theme-2600hz
npm ERR! git Refusing to remove it. Update manually,
npm ERR! git or move it out of the way first.

npm ERR! Please include the following file with any support request:
npm ERR!     /var/www/html/forum/nodebb/npm-debug.log

Any suggestions? I'm not sure if an upgrade was necessary. If so, I tracked down this similar error (https://community.nodebb.org/topic/9833/help-please-how-uninstall-nodebb-package-manager), but it doesn't shed much light on to the problem.

Thanks in advance,
Bret