Describe the bug
When trying to add instance to MultiMC I receive the error Could not understand pack manifest: Document is not an object

To Reproduce
Steps to reproduce the behavior:

1. Drag zip file into MultiMC

Expected behavior
GreedyCraft Instance to be added

Screenshots

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Details
Please fill out the blanks below:
Modpack Version: ( 1.34.1.115 )
Did you add or remove mods? ( NO )
Did you edit any config or script? ( NO )
Using shaders? [Write 'Default' if you are using default shader, if you are not using the default shader please write the name of the shader you are using.] ( NO )
Singleplayer, LAN game or server pack? ( SINGLEPLAYER )

Additional context
I have updated my java and tried downloading the zip file from both the curse forge site as well as here on github and receive the same error with both versions.

Try to unzip the zip file and repack it?

I was able to get it to work after I restarted my computer. Looks like some things just needed to update.