Error while deploying the Faddom ova:

The OVF package is invalid and cannot be deployed.
The following manifest file entry (line 1) is invalid: SHA256 (xxxxxxx.ovf).
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See VMWare

https://kb.vmware.com/s/article/2151537
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This issue occurs because the vSphere Client does not support the SHA256 hashing algorithm.

To resolve this issue, deploy via the vSphere Web Client or ESXi Embedded Host Client because both support SHA256.