That error message indicates that there was a problem initializing the Bluetooth chip.  There are a variety of possible errors that can occur initializing that chip, and the E2 message you're seeing isn't one of the common ones.  My colleague, Nick, could say for sure what that particular error message means, but unfortunately, he's on vacation through the end of this week I believe.  You could try reinitializing the system settings of your H9 as that does help with a few of these sorts of errors.  To do so, turn your H9 off and then turn it back on with the right footswitch and the HotKnob switch in the upper left hand corner of the H9 pressed.  If that doesn't help, please send an email to support@eventide.com, and we'll follow up with you regarding the next steps…