Error is produced when trying to protect the server.
Failed to get metadata from <agent_name>. Exception chain: Could not load type 'System.Dynamic.ComBinder' from assembly 'System.Dynamic, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. Call to service method https://kbc-usl-stor-01:8006/apprecovery/api/agent/metadata/summaryMetadata PUT failed: Could not load type 'System.Dynamic.ComBinder' from assembly 'System.Dynamic, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. Failed to get metadata from <agent_name>.
To resolve the issue, please repair .NET by using .NET Repair Tool https://www.microsoft.com/en-us/download/details.aspx?id=30135
Or simply try to install the latest available .NET runtime framework for the OS on the agent machine.