The mod Transport Drones (0.7.5) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Transport_Drones::on_configuration_changed
Transport_Drones/script/transport_drone.lua:153: attempt to call method 'add_to_be_taken' (a nil value)
stack traceback:
Transport_Drones/script/transport_drone.lua:153: in function 'pickup_from_supply'
Transport_Drones/script/transport_drone.lua:850: in function 'on_configuration_changed'
core/lualib/event_handler.lua:87: in function <core/lualib/event_handler.lua:84>

save works if ı remove the mod from the save and add it again

how did you do that, i mean "remove the mod from the save"?

Disable the mod, load the saved game, save it again, re-enable the mod.

gotlag yea ı did it like that

It should be fixed now in the latest release

Yes it works!!İ havent been playing that save for the last 8 days hoping it will work again thank youuu