Checksums for my unpacked 5.6d files downloaded 11.05.2021 from GitHub follows:

PhoenixMiner.exe:
SHA256 e8e775add50c67e1c6f6ca20db318f745e22b085afcbdf5634015e6ef91e8853

EIO.dll:
SHA256 287e44f5067a4e770e8a0605f5720d3d1477ecc4aa4f3a26ce5d3a489ae79780

EIO.exe:
SHA256 402438684406d1e3b2d1d5629151259ad864ffc55c8e6ab176f4c47c543d4fee

IOMap64.sys
SHA256 ad20e44954960278ad965b05e8c67d9d314c200809b99b1b5a219a916ce06b21

check the sums of the exe, dll, EIO and IOMap64 files, they must match these.

you can verify Checksums here: md5file.com/calculator. Just upload there there one by one PhoenixMiner.exe, EIO.dll, EIO.exe: and IOMap64.sys.

You should have the same amounts as those I indicated above.
While the issue is being resolved with GitHub.