my website http://aqarspot.com is in Arabic language and i want Migrate do i have to make other steps
Most likely not. The arabic language is complete, so far as I know. Also the Right-to-left properties are inherited correctly by NodeBB!
@Chad this plugin provides support for importing from xenforo. https://github.com/akhoury/nodebb-plugin-import
There is one catch with that plugin. You will have to install NodeBB v1.0.0... complete the import and then upgrade NodeBB to latest version.
Chats are integrated into NodeBB. No plugin required. Supports one-to-one and group chats.