Can't upload contacts to next cloud

I am new to using Nextcloud and I set everything up like finding what provider I’ll be using etc. I saw that the contacts I need to upload should be a vcf file which I did. But once I upload the 91 contacts I have it just tells me 91 errors. I tried to upload from my computer and phone but both fail. I do have like emojis on some contacts, I was wondering if that may be the issue ?

Unfortunately you’ve ignored the support template and didn’t provide any information about your environment and how you tried to upload it IN DETAIL. Where have you taken the vcf files from, which version are they having etc., etc.
Due to the fact that all files failed to be imported, I would assume that you’ve tried to import an unsupported vcf file version.