You should be able to find the uninstaller at /Applications/Eventide/Uninstallers/
If you do not have an uninstaller, then you are probably running an old version of the plug-in. I would suggest downloading the latest version of the plug-in and seeing if the crashes persist.
https://www.eventideaudio.com/downloads/?product=SP2016+Reverb
I would also be happy to help you troubleshoot this further to track down and fix the crashes you are experiencing. Please email support@eventide.com and we can work on this there.
