The download for 12.9 isn't available, on the gamemod link. Dropbox link worked fine.

I'm getting this error when factorio starts, any ideas? :)

Error while loading entity prototype "replicator-1" (assembling-machine): conversion of data to type "h" failed
Modifications: dark-matter-replicators




Worked out the fix for this,

Under prototypes\replicators.lua

Find ...