hey when i use uni.chromatic aberration this black dot pops up

[ashhly]

 Hello, i just trying to use uni.chromatic aberration effect but this black dot pops up! I downloaded After Effects 2019 and universe plugin again but it didn't work. Also i use Macbook Air 2017. 

[Peru Bob]

I've moved this from the Using the Community forum (which is the forum for issues using the forums) to the After Effects forum so that proper help can be offered.