From T328032#8936008:
**Acceptance Criteria:**
* Participants are informed that, once they answer the participant questions, they cannot answer again
* After answers are deleted for a participant, if the user goes to the form, they do not fields to collect participant answers. The user should see a notice that they cannot provide participant answers.
* Note that the form applies to both the form in the event page (when the user clicks 'register') and in the special page (Special:RegisterforEvent)
* If someone registers via the API after their answers have been deleted and they provide answers again, they should get an error message
**Design**
[[ https://www.figma.com/file/lJUO73TtMpoyn30zm1qFq7/Campaigns-registration-V2?type=design&node-id=3121%3A84264&mode=design&t=ajcubc8OaerXm3JQ-1 | Design specs ]]
{F37135786, size=full}