Stuck at wocommerce setings

I have woocommerce installed. I had mailpoet in the past. Now I reinstalled it and no matter which link from its menu I am clicking on, I am getting redirected to the woocommerce-mailpoet setup. No matter what I am doing on that setup page (checking or unchecking the options), nothing happens. It is stuck there. There are no ather errors show elsewhere.

What can I do to fix this?

Thanks!