why is minecraft crashing when trying to create a custom ore?

[coarse void]

Once your ticket has been resolved, please close it with </ticket close:1054771505520717835> command!

[turbid solstice]

??neversay

[coral fable]

Never say 'it crashed', 'it errored', or 'it didn't work' without providing the full crash report, log, and scripts!

[fair moon]

heres the crash report