Document Upload Error

I am using an upload button to save documents to my database. No matter what type of document I attempt to upload I always get this error:
The … file failed to upload. Please Try again later. undefined
code: “DS_OPERATION_CANCELLED”, message: “Operation cancelled by user code. Cannot read property ‘uploadFiles’ of null”, name: “DatasetError”, stack: “DatasetError: Operation cancelled by user code. Ca…/services/dbsm-viewer-app/1.225.0/app.js:1:101945”

I have setup the dataset to write only using the form submission permissions. So I don’t believe it is a permission error. The rest of my form without the document upload works as expected. Any ideas what might be causing this and any ideas on how to remedy this?

Hi,
Can you please share a link to your site and specify the name of the page so we can inspect?
Roi.

Sorry for the delay. The form is at

https://www.tradecyclecapital.com/application

However I had to remove that portion of the form. Because if the user attempts to upload documents, the form does not submit. So I have setup another link

https://www.tradecyclecapital.com/copy-of-apply-now

This has the version with the problem upload section.

Okay with a little more investigation today, I have found that if my upload button is on a different slide then the rest of my form this is when the upload fails. Any way around this?