Iris shaders will not load at all.

I have tried multiple shaders, updated, reinstalled both shaders, fabric, and Iris but I still get the same issue.

This is the code I get from the error.

net.minecraft.class2973: Invalid shaders/core/basic.json: Non [a-z0-9/.-] character in path of location: minecraft:basic_tessControl.tcs

I need help : (
Screenshot_2024-07-20_174803.png
Solution
After much trial and error I have discovered that this issue is due to a mod (specifically the Caligo mod). So, if anyone else gets an error like this, I would double check the mods you have installed.
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