VMware vCenter Server
The minimum privileges required to successfully deploy an OVA/OVF template are missing in the custom role.
The following errors (highlighted in bold) confirm the specific privilege which is missing in the custom role.
Follow the instructions below to add the specified privileges to the custom role required for a user to be able to successfully deploy an OVA/OVF.
NOTE: The minimum required privilege to export an OVF is vApp -> Export. See our documentation for more details: Deploy and Export OVF and OVA Templates
Permission hierarchy documentation: Hierarchical Inheritance of Permissions in vSphere