Adding that it happens on level 1, 2 and 3 aswell.

The scenario level caused a non-recoverable error.
Please report this error to the scenario author.

Error while running event level::on_init()
__core__/lualib/story.lua:11: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
__core__/lualib/story ...