Red Exclamation Point Next to Contacts on Garmin Connect

Hi everyone,

I'm having an issue with my Garmin Connect app. I've added some contacts to my list, but there's a red exclamation point inside a circle next to their names. Does anyone know what this means?

I've already tried:

 * Syncing the app and my smartwatch multiple times.

 * Restarting both my phone and smartwatch.

Has anyone else experienced this issue? Do you know how to fix it? Thanks in advance for your help!