Veeam: Processing Server01 Error: VM hardware version 14 is not supported by destination host (version 6.0)

Went to offline backup (replication) one Virtual Machine (VM).

But got an error:
Processing Server01 Error: VM hardware version 14 is not supported by destination host (version 6.0)

Required to downgrade the VM first.

As had a vCenter Converter, could simply run it to downgrade the VM. 
 
Currently, because of vCenter Converter unavailable from Vmware. Another way can be:
Create a new virtual machine with required hardware version and attach the existing disk from the virtual machine. [1]


 
References
[1] Downgrading the virtual machine hardware version in ESXi (1028019)
 
vCenter Converter Unavailable for Download

Virtual machine hardware versions (1003746)

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