Upload Error message

Applicants and myself are unable to submit the form, I am continually getting the message "Upload Error" (see attached screen shot). I have tried changing the file upload buttons from single file attachment to multiple file attachment, and removing the "Required" feature on them, but in all cases the error message still comes up. It is this form https://form.jotform.com/60623900926959 but I made a testing duplicate without all the fields required or the first form and saving feature at https://form.jotform.com/60884570841967 . But oddly both forms do not work. Is there a bug in this particular form and passed on to the duplicate? I tried a different form altogether and it works with uploading files. Please advise, thanks.

I've cloned into your account the form "Clone of Avondbloem - No Saving - Support team" and could successfully upload a file:

https://form.jotform.com/60915371170956 

Let us know if the problem persists.

Thanks Carina, your form is working so far so good! :)

Great! Glad to see that the issue is now resolved for you with the cloned form from our colleague. Please do not hesitate to get in touch with us if you need any further assistance. We will be happy to help.

Thank you for using JotForm!!