Help with particles

[mozuzu222]

on right click:
    if player is holding netherite axe:
        if lore of player's tool contains "&8Shoot a small Matter-splitting Projectile that damages enemies (25 Second Cooldown)!":
            if {cooldownrift::%player%} is 0:
                set {cooldownrift::%player%} to 25
                set {_caster} to player
                play sound "entity.wither.shoot" at player
                play sound "entity.warden.sonic_boom" at player
                loop {@riftRange} times:  
                    set {_block} to block loop-number-1 blocks in front of player
                    set {_base} to location of {_block}
                    loop 4 times:
                        set {_loc} to {_base}
                        set {_height} to loop-number-2
                        remove 1 from {_height}
                        add {_height} to y-coordinate of {_loc}
                        make 3 of item particle using diamond at location of player
                        loop all entities in radius 2 around {_loc}:
                            if loop-entity is not {_caster}:
                                damage loop-entity by {@riftDamage}
                                push loop-entity upwards with force 0.1

            else:
                send "&cWait &e%{cooldownrift::%player%}% &cmore seconds before you can use this ability again!" to

i am trying to use particles (line 16) but it keeps saying it doesnt understand this statement even tho its an official example from the documentation (yes i have skbee)