[Potential Issue] Crash while initializing minecraft after adding custom page from another mod

Created by: gassug3

I'm trying to add Draconium Ore from Draconic Evolution. Not quite sure what the problem is, but the page is failing to be registered according to the log.

Crashlog: https://pastebin.com/8VZ6wJi7 Pages Version: 1.3.0 Mystcraft Version: 0.13.7.02 blocks_custom file: https://pastebin.com/6bC3kJC7