I CANNOT return my form to the default theme

I have attempted to read through existing issues or questions regarding the removal of the theme, however, every single suggestion has failed. I CANNOT return my form to the default theme. please help!

Unfortunately, it seems like it is not possible to go back to default theme:

I will report this to our second level, you should be notified via this thread when this gets implemented.

I was forgetting about the Reset Theme Style feature, please try it: http://www.jotform.com/theme-store/theme/reset-theme-styles

Here is my cloned version of your form, with default theme now: https://form.jotform.com/60176559863972

You may clone it if you want to: http://www.jotform.com/help/42-How-to-Clone-an-Existing-Form-from-a-URL