Random Vertical Line on my form

My form has a vertical line visible on the published version.  What is causing this?  I've check the CSS and can find no code for this element.  It just began appearing one day and has remained since.  Please advise.  Thanks in advance. 

That seems to be added as a form background in your form. It's most likely part of the theme which was messed up.

Anyway, to get rid of that, inject this CSS codes to your form.

.form-all {

    background-image: none;

}

.form-label.form-label-top {

    max-width: 100%;

}

The label code will also fix the overlapping label on this particular field.

Guide: https://www.jotform.com/help/117-How-to-Inject-Custom-CSS-Codes (paste it at the bottom part if there are existing CSS codes)

Hope this helps!