What plugin processes "Visits Overview" data?

I ran into an issue where “Visits Overview” data shows all zeros, even though daily visits do show up in the graph. I recently disabled a bunch of plugins that were not necessary, since we process logs not client-side tracking. I thought I was careful enough not to disable something we used, but clearly not.

Here’s a list of plugins that are inactive:

Annotations
BulkTracking
Contents
CustomPiwikJs
CustomVariables
DBStats
DevicePlugins
DevicesDetection
Ecommerce
Events
ExampleAPI
ExampleCommand
ExampleLogTables
ExamplePlugin
ExampleReport
ExampleSettingsPlugin
ExampleTracker
ExampleUI
ExampleVisualization
Feedback
GeoIp2
Goals
IntranetMeasurable
Live
MobileAppMeasurable
ProfessionalServices
Provider
Resolution
SegmentEditor
TagManager
UserCountry
UserCountryMap
UserId
Widgetize

This is what Visitor Overview data looks like:

This is Matomo 3.9.1

Would appreciate any feedback and information.

Viktor

If anyone has similar problem. For log analytics/importing to work, you must have Bulk Tracking plugin active. Without this plugin, logs will not import.