Please upgrade to 2.2 here.
The 2.0 and 2.1 branches are no longer being updated.
[WhosOnline Addon] Who's Online hits 4k downloads
This discussion is related to the WhosOnline
Just like to say thank you for downloading my plugin, never realised it would be downloaded so many times!
In case you weren't aware the plugin now resides in a git repo at: https://github.com/garymardell/WhosOnline
so if you want to make any changes feel free to fork.