If you're trying to complete an Assessment with a public/generic link and see an error "The candidate with email "email address" was already invited to this role." it means that you've already been invited to the Assessment directly or you've already used that email address for the same Assessment.

You should be able to find your personal Assessment link in your email inbox by searching for an email with the subject "You’ve been invited to an assessment by company name"

If you still aren't able to find the invitation link, please reach out via the chat button in the bottom right corner of this screen and include your full name, the company name and the job name that you're applying for.