Yeah I tried that too as part of a bunch of stuff I tried. I also tried /createmyarea ...
Where are you in putting the commands oO all Lua plugins use the chat for commands and all commands must start with / with no spaces before or after / so you push the key T and then in chat type (/createarea my area name). Then hit enter. You need to move sometimes out and then back into the area, to get the new area to show, but doing this code will make a new area called (my area name) of cause you can replace (my area name) with any name you wish. If you still have problem maybe you could come on to my server and show me what your doing, and I can look to see if your doing it right and help you work it out.