It's unlikely you were cancelled arbitrarily and it's almost certainly the case that you're engaged in a high-risk or restricted activity.

>https://stripe.com/legal/restricted-businesses ... nothing on this page applies to what I am doing.

I doubt it. Post the URL to your business website so we can see why it was cancelled by Stripe.

EDIT: I see you posted the link below, and as eli pointed out, it's probably due to soliciting donations. Per Stripe's restricted businesses link:

Crowdfunding, fundraising, and other donation-soliciting activities