Customize Error Message and/or Hide Form

As far as I can tell, this plugin is supposed to hide a form after its been completed. That is not happening on my site currently. However, when someone resubmits a form they have filled out they get an error message. The individual questions show the error message I want “You may only vote once per category. Please sure to vote in each of the other categories.” but there is a large error message at the top that says “There was a problem with your submission. Errors have been highlighted below.”

So, first, I’d like to hide the form after its submitted and only show the “You may only vote once per category mess”. IF that doesn’t work, I’d like to customize the error message at the top, so it reads “You may only vote once….”

The site is: https://www.bestofmarinapp.com

You can create a login or just use the test one
u:test
p:test

Thanks

https://www.ads-software.com/plugins/gravity-forms-user-restrictions/