Getting this message when trying to make a new world. Strangely enough loading a world from an older edition does not cause this, but loading saves created recently without the mod still does.
The mod Stormwall (1.4.7) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event Stormwall::on_init()
Stormwall/control.lua:315: attempt to index field 'migrations' (a nil value)
stack traceback:
Stormwall/control.lua:315: in function <Stormwall/control.lua:230>