You are an administrator configuring custom reports in Workspace ONE Intelligence.

https://docs.vmware.com/en/VMware-Workspace-ONE/services/intelligence-documentation/GUID-28_intel_reporting.html#limits-to-the-number-of-reports

Limits to the Number of Reports You can create and run up to 50 reports for each organization group (OG). If you have 50 reports in an OG but you need another unique report, you must delete a report to make space.