Particle Systems not working with ( part_particles_create()) ?

So i want to create a few particles when my player dies and i get an error saying
"part_particles_create argument 4 incorrect type (particle system resource) expecting a particle type"
the argument 4 is the name if my particle system and i dont know why its not working

if i type the following code :

part_particles_create(ptSistemName,x,y,part_asset_name,10)

the part_asset_name is not recognied as a particle but when i type it like this :

repeat(10)...

Particle Systems not working with ( part_particles_create()) ?