Talos docs

particles-param-unknown

Since 0.7

an effect param was not applied: the particles component's params, a ctx.particles.play call or ctx.particles.setParam named a param the effect does not declare, or gave a value that does not fit its type (a number param takes a number; a vec3 [x, y, z]; a colour [r, g, b, a] or "#rrggbb"); said once per source and name

Plain text
Severitywarning

Meaning

an effect param was not applied: the particles component's params, a ctx.particles.play call or ctx.particles.setParam named a param the effect does not declare, or gave a value that does not fit its type (a number param takes a number; a vec3 [x, y, z]; a colour [r, g, b, a] or "#rrggbb"); said once per source and name

Fix

use a name from the effect file's params (the message lists them) and a value of its type