I've received this error now on each difficulty setting (tested to replicate with all other mods disabled) when picking up the computer from the SE shipwreck.

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

Error while running event level::on_tick (ID 0)
core/lualib/story.lua:167: attempt to index upvalue '_ENV' (a nil value)
stack traceback:
core/lualib/story.lua:167: in function 'condition'
core/lualib/story.lua:103: in function 'story_update'
...Data/Roaming/Factorio/temp/currently-playing/control.lua:329: in function <...Data/Roaming/Factorio/temp/currently-playing/control.lua:327>

It's working for me without saving the level 3.
Maybe you did save it at some point ? I know there is an issue with the saving/loading process.

I have uploaded the version 1.0.2 that should correct the problem.