So when i try to open MC with Quark, I crash, and it says:

The game crashed whilst rendering overlay
Error: net.minecraftforge.fml.config.ConfigFileTypeHandler$ConfigLoadingException: Failed loading config file quark-common.toml of type COMMON for modid quark
Exit Code: -1

And gives me a crash report.
crash-2021-03-21_16.08.44-client.txt

Looks like you have an invalid quark config. Try deleting /config/quark-common.toml