I am not sure if the exchange connector has been updated.
The exchange connector is build on the javaexchangeconnector and according to their site they do support connections to 365 and exchange 2013.
Can you check what version of ewsj the exchange connector is using?
I have updated the EWSJ jar and i still get an error :
error initializing connector: jec.framework.exchange.exception.InvalidLicenseException: null