Issue Description:

Accidently added a extra < in

recipes.replaceAllOccurences(<tfc:metal/ingot/copper>, <tfctech:metal/wrought_iron_gear>, <*>.only(function(item) {
    return !isNull(item) & <<immersiveengineering:metal_decoration0:3>.matches(item);
}));

What happens:

Game crashes at startup

What you expected to happen:

Game starts and an error in chat and crafttweaker.log

Script used (Please Pastebin or gist your script, posting an unpasted or ungist'd script will automatically close this issue):

https://pastebin.com/vC2ZrYtk

crafttweaker.log file (Please Pastebin or gist your file, posting an unpasted or ungist'd file will automatically close this issue):

https://pastebin.com/iYA3NTqA

Affected Versions (Do not use "latest"):

• Minecraft: 1.12.2
• Forge: 14.23.5.2847
• Crafttweaker: 1.12-4.1.20
• Using a server: No
• If yes, does the client have the exact same scripts?

Your most recent log file where the issue was present:

crash.log
latest.log

I'm not sure the issue...
You added an extra < and now it is crashing?
try removing it...?