Gave error when exchanging files by importing folders

[Matheuspeppers]

Guys, I need urgent help from you.
In this report I did the import by folder, because I need to merge 3 different files, but every day I download a new file that contains the total period and exchange them in the folder. Today I did the file exchange, and believing that in the update everything was going to work normally, including all the APPLIED STEPS I did, but it gave this error. Can anyone help me?

[Greg_Deckler]

@Matheuspeppers Looks like one or more of the files is missing a column called "Dia"?

[Matheuspeppers]

@Greg_Deckler It comes with the Day column, however, I renamed it to Date in one of the Applied Steps in the "Transform the Sample File", only very strange, it didn't recognize this and gave an error.

[Greg_Deckler]

@Matheuspeppers There is another step after that rename step that is still referring to Day instead of Date then. Use the Advanced Editor to find the offending step and change the reference from Day to Date.