https://services.arcgis.com/4YineAQdtmx0tv46/ArcGIS/rest/services/Burlington_Solar_Storage_Project_Area_General/FeatureServer

https://services.arcgis.com/4YineAQdtmx0tv46/ArcGIS/rest/services/Burlington_Solar_Storage_Project_Area_General/FeatureServer

This is one service, not a server root. Trim back to /rest/services to see everything the server publishes.