To expand on @pitaj's reply --
Correct, there is no difference in the code between the hosted version and the open source version. However, the hosted version does come with support ticket access and scheduled upgrades are free as part of the monthly fee.
We also handle set-up/install, as well as scheduled backups of the data both locally and externally.
I did Restart of my Nodebb Forum and now don't work the Panel of Admin.
I have this Plugins : http://i.gyazo.com/1b437a3267beaf5db0385e572cd6239c.png
O.S : Windows Server 2012
Nodebb Version : 0.6.0