Can you confirm the applicable kubernetes version? My kubernetes 1.20 report is wrong.

[llody55]

kubernetesL1.20 permission-manager:1.9.0 error: error validating "permission-manager/crd.yml": error validating data: [ValidationError(CustomResourceDefinition.spec.versions[0].schema): unknown field "properties" in io.k8s.apiextensions-apiserver.pkg.apis.apiextensions.v1.CustomResourceValidation, ValidationError(CustomResourceDefinition.spec.versions[0].schema): unknown field "type" in io.k8s.apiextensions-apiserver.pkg.apis.apiextensions.v1.CustomResourceValidation]; if you choose to ignore these errors, turn validation off with --validate=false