If you search "Unable to load Info.plist exceptions" in Console.app, you will find lots of log items from various apps, it seemed harmless.
The error dialog actually reveals a clue, the warning icon shows it's from Core Helper Installer itself, and there is only one place tries to alert error – writing essential files for the launch agent.
Could you please execute these three commands, and send back the output?
ls -la ~/Library/ | grep LaunchAgents
ls -la ~/Library/LaunchAgents/
ls -la ~/Library/Group\ Containers/E78WKS7W4U.io.coressh/