Mistake Script bot IRPA Store

Hi everyone,

I downloaded a bot from the IRPA store called: Creation of Sales Order BAPI. I did the necessary adecuations indicated in the PDF but when i tried to debug appeared this mistake : Parse Error. Invalid Assignment Target in the line: rootData.userImport1(rootData.para) = rootData.value.

I don't understand what it's about and i can't find documentation about it.