Looks like the new BitCore BTX Version 0.15.0.2 update is not working on MacOS High Sierra 10.13.2. I will just roll back to the old version until the update is fully complete.
https://imgur.com/PZTixgmNot working for me too.. I on MacOS High Sierra 10.13.2 too
try backing up and deleting the chain ensure you backup
wallet.datjust updated on windows 10 and it wouldn't start, deleted the chain and its syncing now