Error Deploy MySQL plugins on OEM 13C

Hello team, do you ever fact this issues to deploy MySQL plugins on OEM.

No central agents of the management servers could be obtained for plugin deployment. The following query was used to retrieve them - "SELECT t.target_name, t.emd_url, op.host_url, op.oms_id, op.status, op.unique_oms_name, op.is_first_oms, op.oracle_home, op.server_name, op.domain_name, op.host_name , ca.current_status, t.target_guid, ca.current_sub_status FROM gc_oms_info op, mgmt_targets t , mgmt_current_availability ca WHERE upper(op.host_name) = upper(t.host_name) AND op.em_release_version = ? AND op.domain_name = ? AND t.target_type='oracle_emd' AND ca.target_guid = t.target_guid ORDER BY op.oms_id"