This message means that the underlying AppMap Triage data from the agent transaction sampling of the defined Business Services is exceeding the threshold property: introscope.apm.query.max.results.
This property is set in the file APMEnterpriseManager.properties
Aside from increasing the threshold other options are to reduce the sampling, age out the data sooner, or configure more regular pruning.
For further details see the Configuration and Administration Guide Chapter for "Configuring the Application Triage Map".
The Sizing and Performance Guide Chapter for "Monitored Application Requirements" describes how to estimate the volume of application triage map metrics.