Splunk App for Infrastructure: Http Event Collector Tokens

Hello, I'm trying to set up some monitoring/dashboards for the infra in our team. I've installed Splunk App & Add-on for Infrastructure and it needs me to set up a HTTP Event Collector (HEC). However, when I go to set that up, it keeps giving me this error: `"A token cannot have individual configuration for port."` I'm following the steps here: https://docs.splunk.com/Documentation/Splunk/7.1.3/Data/UsetheHTTPEventCollector My global settings have tokens enabled, port set at 8088. (Although it says 'optional', i can't leave it blank because it keeps telling me "Parameter port: Ports must be numeric values.")