My sim keeps catching fire

For a challenge/story I needed to set my sim on fire and I found a few cheats which I used to do the job. Trouble is, now she KEEPS catching fire spontaneously and I don't know how to stop this.

These are the cheats (as listed on Sims VIP) that I used to set her on fire (can't remember if I used only one or all of them as it was several months ago that I last played):

stats.set_stat commodity_Buff_BurningLove_StartFire 7 - this has a 15% chance of spawning a fire and igniting your active sim each time you enter it

sims.add_buff BurningLove — Increases your chances of causing a fire for 4 hours.

Apparently, "The combustion command lingers with your sim, meaning after the timeout runs out or is removed, your sim could spontaneously combust at any point in time" and I am certainly finding this to be the case! But supposedly, entering the cheat "sims.remove_buff BurningLove" should "remove the combustion chance" and prevent your sim from catching fire again. However, this cheat hasn't worked for me! My sim is still catching fire repeatedly!