Error in arithmetic operation in script load editor

[LeonardoB25]

Hello, this is a snippet of my script load editor:

I have the error "unexpected token" at line 68, the [Data Documento] on the right is the problem. Compiler expects an operator, a ':' or a ','. I really don't understand why it's wrong, since syntax seems correct from what i saw online.

Here the error log:

[marcus_sommer]

It's the syntax - "normal" fields and tables will be specified with: Fieldname respective wrapped with certain quotes like "" or [] if the field-names contain any spaces or special chars. But by using field-functions it's different because they require a string-representation for the field and therefore single-quotes, like (above already shown):

let var = fieldvalue('fieldname', 1);

[LeonardoB25]

you're right, it was my fault from the beginning. Thanks again!