The game is encrypted... when you apply the 'patch', you replace the 'system.json' file, which has a line in the code that refers to encryption, with another file that does not have those line. I don't know who made the patch, but they forgot this detail.
For v.05.5.1, PC and macOS weren't supposed to be encrypted. We'll be fixing that now.
But there's more to it:
People should not be applying the v.05.5.1 patch to the BETA. We'll probably, maybe, make patches compatible with the betas in the future but for right now it isn't.
The patch also shouldn't be applied to the version you downloaded that is already version v.05.5.1 - it's redundant and will actually break it for now. After we've fixed the links, it will not break the game anymore but it will still be redundant as it is already up-to-date.
So in short:
If you have the BETA, download the new full version instead of applying the patch and you'll be fine.
If you have the public version v.05.5, you can apply the patch like normal and all is well.
Do not:
Install the v.05.5.1 patch to the BETA.
Install the patch to a version that is already v.05.5.1 (it says the version in the top left on the title screen).