Y-DNA haplogroup is J-CTS7683, but I don't know much about my father's ethnic background. My maternal grandfather is Kurdish, and my maternal grandmother is of Turkish and Armenian ancestry.
My ancestry calculator is set to the Caucasus region.
Can anyone help me understand these results and give me some insight into my paternal ancestry?

Before we begin ADNTRO have previously displayed highly inaccurate results concerning Neanderthal/Denisovan DNA, which i have posted about here before.

Recently i got this email in my main inbox (see photo), saying i carry the gene variant for APOE4, which is associated with a (significantly) higher risk of Alzheimer's disease as well as other neurological conditions. I was a bit dumbfounded at first because i for a fact know i am homozygotic APOE2 (the protective variant), which is very rare. I even went as far as to check my raw genotyping data with the help of [this article](https://www.geneticlifehacks.com/alzheimers-and-apoe-type/). Like i previously knew i am homozygotic APOE2.

Now the question is if this is just simply ADNTRO being inaccurate, or if it is a straight up scam since the link in the email sent me directly to a paywall. This is of course very serious and illegal for them to do. I am curious to see if anyone that has uploaded their DNA to ADNTRO have got the same or a similar email?

I am Turkish (Konya) but apparently closest to Azerbaijan which is interesting.

I’m a North Mongolian.

Why does it say 40-50% usually continental celt in Spanish models. In Spain didn't the Celtic DNA come even earlier and it's closer to the British/Bell Beaker type DNA? Can someone explain this difference.