Thank you for the report! I must have been rather tired, that's another stupid typo. I'm going to wait a day or two before fixing this, in the hope of getting more such bugs reported (don't want to push a new release for fixing each small typo).
Meanwhile, you can fix that yourself by changing line 233 of scripts/sensors/logistic.lua from
AD.argprintNewBlock("Do we have a valid requester?")
to
AD.writeDebugNewBlock("Do we have a valid requester?")
The same error ("argprintNewBlock" instead of "writeDebugNewBlock") occurs again in line 270, so you should fix that as well.