When running health checks the --slackBotToken must be specified. The token is the OAuth token for the Slack App that is used for notifications.slackBotToken
Running in pm2:
resends:
pm2 start src/realtime-healthcheck.js -- --slackBotToken 'TOKEN_HERE'
real-time:
pm2 start src/resend-healthcheck.js -- --slackBotToken 'TOKEN_HERE'