Last days I experience an error that for some contacts in the Experience profile, the Experience profile displayed the following error:

In the console, I can saw a similar message for best-pattern-maches requests.

In the log file there was an exception:
9856 07:18:53 ERROR [Experience Profile]: Profile data can not be shown for this visitor because there are no pattern cards configured for this profile. Exception: System.ApplicationException Message: Profile data can not be shown for this visitor because there are no pattern cards configured for this profile. Source: Sitecore.Cintel at Sitecore.Cintel.Reporting.Contact.ProfileInfo.Processors.FindBestPatternMatchAndApplyToProfileInfo.ApplyPatternToOneProfile(ReportProcessorArgs args, DataRow profileRow) at Sitecore.Cintel.Reporting.Contact.ProfileInfo.Processors.FindBestPatternMatchAndApplyToProfileInfo.ApplyPatternsToResultTable(ReportProcessorArgs args, DataTable resultTable) at Sitecore.Cintel.Reporting.Contact.ProfileInfo.Processors.FindBestPatternMatchAndApplyToProfileInfo.Process(ReportProcessorArgs args) at (Object , Object ) at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args) at Sitecore.Cintel.Reporting.PipelineViewProvider.GenerateContactView(ViewParameters viewParameters) at Sitecore.Cintel.Endpoint.IntelController.Get(ViewParameters viewParams, Guid contactId, String viewId, String id)
Thanks for Sitecore Support; the solution was relatively easy and fast – I have to create empty pattern cards for default Sitecore profiles:
