ReferenceError: Can't find variable: xyz at Line: -#

Question

ReferenceError: Can't find variable: signs at Line: -21

What does this error mean?
I declared and defined function signs {
……..;
}
Please help. 😩
https://code.sololearn.com/WJetWhMNg48T/?ref=app

Answer 1

I think I see it now. Plain script tag.

Answer 2

https://code.sololearn.com/WLzzogrebe77/?ref=app

Answer 3

Raul Ramirez Mil gracias, mi amigo. But how? I don’t see what changed.