There's 2 issue here.
Office 3.0.1 give me this error;
Call to a member function html() on null
No error if using Protostar default.
Also there is a notification for update to ES 3.0.2, but click an update button all giving an error;
Error updating component when using the API from Joomla. Please try again.
This is a fresh install of;
Office template 3.0.1