Server crashes when joining new ages with instability

[Slappy826]

While this issue is similar to this issue (issue 285), i'm not using spongeforge, and this only happens when joining worlds with instability it seems.

Crash report: https://pastebin.com/r7K5ms1X

[Veovis-Muaddib]

Try disabling Meteors, which are in both the instability config and the symbols config.

http://wiki.mystcraft.xcompwiz.com/v0.13:Instability#Configuration