AE Expression Erros

[rgomes10]

Hello guys, 

I am working on AE 2023/OS12.5  and creating an interaction when the shape deforms when collides with the shadow.  

Expression: 
x=thisComp.layer(thisComp.layer("bg")).sampleImage(transform.position), [0.5, 0.5]/2, true, time) [0];
100*[x,x];

Does anyone have an idea why I am having this error?

Many thanks in advance,

Røms

[Dan Ebberts]

Maybe try it this way:

x=thisComp.layer("bg").sampleImage(transform.position, [0.5, 0.5]/2, true, time) [0];
100*[x,x];