Asking google form to populate multiple file upload questions into 1 folder for each submission - google-forms

Question

I have this script for my google form that has multiple file upload questions. Generally google forms will automatically create folders for each question in our drive.
My aim is to transfer all files into 1 folder (separated by response), rather than having to look into multiple folders for 1 response. I have done this script where the files will create a folder based on 2nd question (as title) and be in a designated folder (added folder id). However, there are some times where the google form response does not perform the trigger (failed).
Hope someone can help with the script. Because there is no indication of the error and i will need to manually look occassionally.
This is my script
const PARENT_FOLDER_ID = "1Za2tSQzjjmT4spA7azrI9hVerRLrPcz2";
const initialize = () => {
const form = FormApp.getActiveForm();
ScriptApp.newTrigger("onFormSubmit").forForm(form).onFormSubmit().create();
};
const onFormSubmit = ({ response } = {}) => {
try {
// Get some useful data to create the subfolder name
const firstItemAnswer = response.getItemResponses()[0].getResponse() // text in first answer
const seconditemAnswer = response.getItemResponses () [1].getResponse() // text in 2nd
const user = response.getRespondentEmail() // email (Collect email addresses must be enabled)
const time = response.getTimestamp() // when the response was submited
const subfolderName = seconditemAnswer
// Get a list of all files uploaded with the response
const files = response
.getItemResponses()
// We are only interested in File Upload type of questions
.filter(
(itemResponse) =>
itemResponse.getItem().getType().toString() === "FILE_UPLOAD"
)
.map((itemResponse) => itemResponse.getResponse())
// The response includes the file ids in an array that we can flatten
.reduce((a, b) => [...a, ...b], []);
if (files.length > 0) {
// Each form response has a unique Id
const parentFolder = DriveApp.getFolderById(PARENT_FOLDER_ID);
const subfolder = parentFolder.createFolder(subfolderName);
files.forEach((fileId) => {
// Move each file into the custom folder
DriveApp.getFileById(fileId).moveTo(subfolder);
});
}
} catch (f) {
Logger.log(f);
}
};