All in the title, I tried rescanning in the plugin manager and no issues were found until I start using the plugin.

First I want to make sure that you are using version 1.1. Can you launch the plugin at all? If so, check the version number in the about box: https://soniccharge.com/forum/topic/1647-hi-there

Second, how many outputs does Echobode come up with in the popup menu? We are currently investigating a pretty nasty issue in Logic 10.5 concerning invalid output counts (not just happening to our plugins btw). Is it related by any chance? Read more here: https://soniccharge.com/forum/topic/1628-microtonic-multi-issues-with-logics-new-update-

Third, when it crashes, do you see any crash report? Could you please copy & paste the text in it here.