Cops Reaching Out About A Youtube Video

Do I reach out to the cops park cops who contacted me. I do videos where I hike back into cool buildings and all that are on public land, I have been reached out to by park police asking me to contact them about a video. I am not sure what I did wrong but also it seems like they aren’t charging me with anything?
The email is this

Hey person,
Can you reach out to me at the places name Park when you get a chance. The number to the office up here is number here. I would like to talk to you about your videos on Youtube that were sent to me.
Thank you

I am so confused what they need to talk to me about but also I don’t want to find out incase I’m in trouble. Is it better to never reach out and hope nothing comes of it or to just call and see what they want. I feel as if I contact back they will know they have the right guy vs if I always ignore maybe they will give it up. But then if I ignore what if it gets worse.

Location: Southern Arizona

Edit: I reached out to a lawyer who does federal cases and gave him the whole rundown, he said to absolutely not talk to them and that not to worry, likely nothing will come of this and they apparently would have to prove a lot to do anything. So this gave me way more peace of mind and now I have a lawyer.

It’s just so crazy I’ve been told my whole life that my generation doesn’t do anything and is lazy and has no hobbies and then when I record myself hiking so my family members who live across the US can see I have police reaching out to me.
Like they say we need to be out more but it seems like anything gets you in trouble