Form not working - user getting error on upload field

I have had several clients try to fill out my form and when they go to upload the pictures they say it says error and kicks them out

Greetings,

I've just sent a test submission on your form with the uploaded files. I was able to do it successfully. Do you have your form embedded on a website? If yes, then please provide a form URL so we can check this further for you.

Thanks

https://form.jotform.com/200568240959158

Greetings,

The provided form URL is working as expected. Should you need further assistance then please let us know.

Thanks

Form not working again
Live The Adventure,
Kristine Norris
Sent from my iPhone
...

Hi,

Can you try removing the file upload widget from your form and adding it once again?

Please let us know if the issue still persists.

I have some people tell me that it doesn’t work when using their phone and others that it does work with. And if I delete the widget then it tells me that I will lose that data. Does that mean I will lose the data from the former submissions?
Live The Adventure,
Kristine Norris
Sent from my iPhone
...

Greetings Kristine,

If you delete a field from the form then the associated data in the submissions will be deleted as well. Please try hiding the field instead.

https://www.jotform.com/help/434-how-to-hide-form-fields

Thanks