Describe the bug
When player use auto craft, the server console will crazy spam warning!

To Reproduce
When player use auto craft

Expected behavior
No any warn spam in my console

Additional context
Part of server log: https://pastebin.com/bSenAcAv

Environment
Forge - 14.23.5.2854
Applied Energistics2 - appliedenergistics2-rv6-stable-7.jar
AE2 Stuff - ae2stuff-0.7.0.4-mc1.12.2.jar
AE2 WIreless Terminal Library - AE2WTLib-1.12.2-1.0.34.jar
Wireless Crafting Terminal - WirelessCraftingTerminal-1.12.2-3.12.97.jar

#3822 and lots others.

Basically caused by Mods, that implement their own Crafting Handler, that does not work like the Forge one. AE2 is programmed with the Forge one in mind.
In your case Mekanism is the Mod causing the issues with the Crafting.

We also don't (sadly) support any version prior to 1.15 anymore due to time constraints. Sorry!