#37 Throwing errors whenever a block from a generator is broken

plugin name:Custom Ore Gen plugin version: CustomOreGen v1.15.26-SNAPSHOT spigot version: git-PaperSpigot-445 issue description: Soo, the plugin seems to work fine but..whenever soimeone uses the generator I get spammed with a error in the console console errors: https://pastebin.com/vwKJrW5F