Stranger Contacts

Hello.
I’m having this strange inputs in my contacts list, in the web, and the same strange data is replicated in my phone through DavX5.
Is this a nextcloud issue or is it a problem with my phone?
Sorry to bother you.

Nevermind. I’ve restored my contacts from a backup from Google (haven’t used it for a while so i’ve lost a couple of contacts). Still don’t know what happened thou.
Thank you anyway.