Recruiter unable to find or create candidate profile, error candidate email already exits

Summary:

Content (please ensure you mask any confidential information):

Recruiters are unable to find the candidate in candidate search , however when we search the candidate with email it says 9 results but when we look at the profiles none of them have the same email ID.

When trying to create a new candidate profile - then system throws error saying email ID already exists.

Version (include the version you are using, if applicable):

23c

Code Snippet (add any code snippets that support your topic, if applicable):