DarkRP.createEntity("Special Pot", {
    ent = "eml_spot",
    model = "eml_spot",
    price = 875,
    max = 2,
    cmd = "buyspecialpot",
    category = "Meth",
    allowed = {TEAM_METHCOOK}
})

[ERROR] A runtime error has occurred in "addons/darkrpmodification-master/lua/darkrp_customthings/entities.lua" on line 70.
The best help I can give you is this:

Corrupt entity: Pot!
This entity does not have a unique command.

Hints:
	- There must be some other entity that has the same thing for 'cmd'.
	- Fix this by changing the 'cmd' field of your entity to something else.

The responsibility for the error above lies with (the authors of) one (or more) of these files:
	1. addons/darkrpmodification-master/lua/darkrp_customthings/entities.lua on line 70
	2. function 'xpcall'
	3. gamemodes/darkrp/gamemode/libraries/simplerr.lua on line 477
	4. gamemodes/darkrp/gamemode/libraries/fn.lua on line 84
	5. gamemodes/darkrp/gamemode/libraries/fn.lua on line 84
	6. gamemodes/darkrp/gamemode/libraries/modificationloader.lua on line 137
	7. gamemodes/darkrp/gamemode/libraries/modificationloader.lua on line 148
	8. gamemodes/darkrp/gamemode/init.lua on line 86
------- End of Simplerr error -------