What's wrong with this code? When I right-click on crusher or compressor, Minecraft don't crash but world closes and I see "Fatal error: your connection terminated." Only compressor didn't work earlier but when I rewrite code to fix it the same problem became with crusher too.
There is a block with GUI in my mod. It works by the furnace principle but it has three slots for items instead of one. How do I need to create a recipe system for this block?