09:49:54.361 [ImportScheduler-Thread] DEBUG o.c.o.s.importing.ImportScheduler - error while executing import job
java.lang.NullPointerException: null
        at org.camunda.optimize.service.importing.impl.ActivityImportService.currentHpiContainsOnlyNullElement(ActivityImportService.java:102)
        at org.camunda.optimize.service.importing.impl.ActivityImportService.getIdsForPostProcessing(ActivityImportService.java:95)
        at org.camunda.optimize.service.importing.impl.PaginatedImportService.executeImport(PaginatedImportService.java:50)
        at org.camunda.optimize.service.importing.job.schedule.PageBasedImportScheduleJob.execute(PageBasedImportScheduleJob.java:18)
        at org.camunda.optimize.service.importing.ImportScheduler.executeJob(ImportScheduler.java:90)
        at org.camunda.optimize.service.importing.ImportScheduler.run(ImportScheduler.java:57)