skDragon particles

[BirdCanFly]

hello,
i want to make a line with the particle cloud(like a gun), but it doesn't work and has no errors.
If any one knows what is wrong, pls tell me.

Spoiler: script

set {&k9.GodWand.%player%.1} to block 4 in front of the player
                set {&k9.GodWand.%player%.2} to block 7 in front of the player
                set {&k9.GodWand.%player%.3} to block 10 in front of the player
                set {&k9.GodWand.%player%.4} to block 13 in front of the player
                set {&k9.GodWand.%player%.5} to block 16 in front of the player
                set {&k9.GodWand.%player%.6} to block 19 in front of the player
                set {&k9.GodWand.%player%.7} to block 21 in front of the player
                set {&k9.GodWand.%player%.8} to block 24 in front of the player
                set {&k9.GodWand.%player%.9} to block 27 in front of the player
                set {&k9.GodWand.%player%.10} to block 33 in front of the player
                set {&k9.GodWand.%player%.11} to block 36 in front of the player
                set {&k9.GodWand.%player%.12} to block 39 in front of the player
                set {&k9.GodWand.%player%.13} to block 42 in front of the player
                set {&k9.GodWand.%player%.14} to block 45 in front of the player
                set {&k9.GodWand.%player%.15} to block 48 in front of the player
                set {&k9.GodWand.%player%.16} to block 51 in front of the player
                set {&k9.GodWand.%player%.17} to block 54 in front of the player
                set {&k9.GodWand.%player%.18} to block 57 in front of the player
                set {&k9.GodWand.%player%.19} to block 60 in front of the player
                set {&k9.GodWand.%player%.20} to block 66 in front of the player
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.1}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.2}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.3}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.4}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.5}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.6}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.7}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.8}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.9}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.10}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.11}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.12}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.13}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.14}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.15}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.16}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.17}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.18}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.19}, visibleRange 60, pulseDelay 0, keepFor 4 ticks
                wait 1 tick
                drawDot count 10, particle "cloud", XYZ 1, 1, 1, center {&k9.GodWand.%player%.20}, visibleRange 60, pulseDelay 0, keepFor 4 ticks

edit: i got an error from the console:

Spoiler: error

[09:52:04 WARN]: [skDragon] Task #5210 for skDragon v0.14.0 generated an exception
java.lang.NullPointerException: null