rolling back to 3.5...
Error -->> http://prntscr.com/r3b164

Same

i got a different error, but it also happened after restarting the game after a few days, just having applied all the latest updates for the base game, this mod and several other mods (including slightly modifying my modpack) ...

anyway, i got only one error message, and only for this mod, version 0.3.6.
here it is from the current.log :
(edit: deleted 0.3.6 and reinstalled 0.3.5, and no problem to start the game now)

Failed to load mods: Mining_Drones/data.lua:5: Mining_Drones/data/entities/entities.lua:1: Mining_Drones/data/tf_util/tf_util.lua:41: attempt to perform arithmetic on field 'animation_speed' (a nil value)
stack traceback:
Mining_Drones/data/tf_util/tf_util.lua:41: in function 'recursive_hack_animation_speed'
Mining_Drones/data/tf_util/tf_util.lua:43: in function 'recursive_hack_animation_speed'
...nes__/data/entities/mining_drone/mining_drone_entity.lua:43: in function 'make_drone'
...ing_Drones__/data/entities/mining_drone/mining_drone.lua:7: in main chunk
[C]: in function 'require'
Mining_Drones/data/entities/entities.lua:1: in function 'require'
Mining_Drones/data/entities/entities.lua:3: in main chunk
[C]: in function 'require'
Mining_Drones/data.lua:5: in main chunk
stack traceback:
[C]: in function 'require'
Mining_Drones/data/entities/entities.lua:1: in function 'require'
Mining_Drones/data/entities/entities.lua:3: in main chunk
[C]: in function 'require'
Mining_Drones/data.lua:5: in main chunk
stack traceback:
[C]: in function 'require'
Mining_Drones/data.lua:5: in main chunk

Mods to be disabled:
• Mining_Drones

Thanks for the report, I have fixed the errors

it works nicely now. thanks !

btw: this mod also works nicely together with the "Gear Girl" mod (https://mods.factorio.com/mod/GirlCharacter) and with "I, Robot" (https://mods.factorio.com/mod/IRobot). the latter is especially funny when also using "Construction Drones" (https://mods.factorio.com/mod/Construction_Drones, mod also by Klonan). as a result, i now have a big Compilatron char as the boss, one swarm of compilatron miners and one swarm of compilatron constructors :-)