Stuck on "Enable Healthkit"



the issue that I am having with Sweatcoin is that I want to use Sweatcoin on my Apple Watch Series 3. This is so that I do not need to bring my iPhone with me to track my steps. This was also the primary reason in which I bought an Apple Watch.

When I opened Sweatcoin on Apple Watch, it first said “Please open Sweatcoin on iPhone”
I did that and now it says “Please enable Healthkit on iPhone.” However, there is nothing popping up on my iPhone. I have an iPhone 6s, which supports my Apple Watch and Sweatcoin.

I truly hope that someone can help me.