Using Factorio 1.1.107, Eradicator's Belt Planner (Beta) 0.2.12, Eradicator's L.I.B.R.A.R.Y. 4.2.6
When starting a new (or existing) game I get the following error:

eradicators-library/erlib/lua/Lock.lua:103: attempt to call field 'getmetatable' (a nil value)
stack traceback:
eradicators-library/erlib/lua/Lock.lua:103: in function 'auto_lock'
eradicators-library/plugins/!init/loader.lua:51: in function 'init'
eradicators-library/plugins/!init/!init.lua:66: in function <eradicators-library/plugins/!init/!init.lua:61>
eradicators-library/control.lua:26: in main chunk