Hard Disk Manager for Mac in 10.13.4, kernel extension doesn't load

I am attempting to run the latest Trial of HDM on my Mac, but I can't get the kernel extension to load. I can click "Allow" in system preferences, but nothing happens.

I do see some error messages in the console:

Quote:

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default 14:40:28.116298 +0200 syspolicyd MacOS error: -67050
default 14:40:28.118580 +0200 syspolicyd MacOS error: -67050
error 14:40:28.122768 +0200 syspolicyd Kernel Extension BLOCKED: <private>
default 14:40:28.123279 +0200 kextd Kext rejected due to system policy: <OSKext 0x7fdd24a1e4c0 [0x7fff83094af0]> { URL = "file:///Library/StagedExtensions/Library/Application%20Support/Paragon%20Software/Snapshot/ParagonSnapshot.kext/", ID = "com.Paragon-software.ParagonSnapshot" }
default 14:40:28.123328 +0200 kextd com.Paragon-software.ParagonSnapshot failed security checks; failing.
default 14:40:28.134218 +0200 trustd cert[2]: AnchorTrusted =(leaf)[force]> 0
default 14:40:28.145896 +0200 syspolicyd MacOS error: -67050
default 14:40:28.147149 +0200 syspolicyd MacOS error: -67050
error 14:40:28.150229 +0200 syspolicyd Kernel Extension BLOCKED: <private>

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Extensions from other vendors do load properly.