Thanks for your setup. Chat looks nice on the site.
Please find below few issues and question relative to this setup :
In admin section > /arrowchat/admin/general.php?do=embedcodes
can't see a button to save settings. Find screenshot below :
In embed section on page :
Under FF : can't see the photo upload picto.

Under Chrome : can see, not allign and clicking does nothing.

Question : do you plan to setup Notifications for Xenforo?
Two users are not connected on XF anymore till 30min and are still available in Chat ?
I think it is a cache issue : anyway to fix it up ?
Thank you for your support.