title: Magento 2.0.7: Something went wrong with the subscription.
body: <p>get error whe subscription Newsletter. How can fix? 
  <a href="https://i.stack.imgur.com/DXIxm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DXIxm.png" alt="enter image description here"></a></p>