What happens:

I get this error in my log even if I have no scripts in my folder. I haven't noticed any issues that seem related though.

What you expected to happen:

To not see an error.

Script used:

https://pastebin.com/raw/E7ek5ZEd (None)

Minetweaker.log file:

https://pastebin.com/raw/QuEjmBT8 (With no scripts in folder)

Affected Versions:

• Minecraft: 1.10.2
• Forge: 12.18.3.2185
• Crafttweaker: 1.10.2-3.0.26
• JEI: 1.10.2-3.14.7.417

Your most recent log file where the issue was present:

https://pastebin.com/raw/8QzRGh5x (With scripts)

This isn't something you need to worry about, it is just a warning and it is caused by the JEI support being loaded twice, probably some debug code left in