Kicked: RPC Error in DoPlaceError
when installing, it throws out with the message: RPC Error in DoPlace
in consol: 
NullReferenceException: Object reference not set to an instance of an object
player kicked: RPC Error in DoPlace
Could you provide the full error please?

NullReferenceException: Object reference not set to an instance of an object

(20:16:52) | [Welcomer] ☒ Asbo- left the server (Kicked: RPC Error in DoPlace)

Merged post

as it gets placed you get kicked.. when you log back into the game the recycler was placed however you still have one in your inventory.
thats all :(
The developer should have already posted an update for this I believe.
crutch :)
I have downloaded and installed the updated version - but this is still happening. Anytime someone places a recycler: RPC Error in DoPlace and they get kicked. When they log back in the recycler was placed, and they also still have it in the inventory.
Not sure if my reply would be seen in a thread marked FIXED, so:

I have downloaded and installed the updated version - but this is still happening. Anytime someone places a recycler: RPC Error in DoPlace and they get kicked. When they log back in the recycler was placed, and they also still have it in the inventory.

Error in console:

(22:40:16) | NullReferenceException: Object reference not set to an instance of an object

o.plugins:

42 "Extended Recycler" (1.0.9) by Orange (0.20s) - ExtendedRecycler.cs

it's the same for me . you with the kik error. the processor both costs and remains in the inventory. this is not just your plugin. it's all plug-ins associated with the processors. When I put the plugin where the processor looks like a 3-level workbench. players could not create workbenches. and from the inventory of events and gifts, workbenches disappeared.
Deleted the plugin and all instances, and reinstalled and works.
This is still an issue for me:

o.plugins:

"Extended Recycler" (1.1.0) by Orange (0.43s) - ExtendedRecycler.cs

place a recycler:

NullReferenceException: Object reference not set to an instance of an object

Player has left. (Kicked: RPC Error in DoPlace)