For connection requests to work, both users need to have "open" profiles. If the other person's profile is set to "limited" or "closed," the request won't go through, even though you may have received an email.
If both profiles are open and you're still getting an error, it's likely a display bug we're aware of. Contact us and we'll sort it out.
If you have a Genomelink account, go to genomelink.io/profile/contact and contact us from the form — we can help faster by checking your account log.
If you're a new user without an account yet, email us at info@genomelink.io.