The mod Peppermint Mining (2.2.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Peppermint_Mining::on_nth_tick(67)
Peppermint_Mining/control.lua:375: attempt to index field '?' (a nil value)
stack traceback:
Peppermint_Mining/control.lua:375: in function 'pick'
Peppermint_Mining/control.lua:152: in function 'mine'
Peppermint_Mining/control.lua:281: in function 'mine'
Peppermint_Mining/control.lua:445: in function 'chewy'
Peppermint_Mining/control.lua:403: in function <Peppermint_Mining/control.lua:398>