title: Facebook Send Api - reactivate webhook subscription
body: <p>My server went offline for a day and now facebook has stopped sending requests to my webhook. This is the error message i get:</p>
  
  <p>Your Webhooks subscription for callback URL <a href="https://myurl" rel="nofollow noreferrer">https://myurl</a> has not been accepting updates for the past 0 minutes. This subscription has been disabled. To reactivate, just make a POST request with the same parameters or visit the Webhooks tab in the app dashboard. Scopri di più about Webhooks.</p>
  
  <p>What post request is he talking about? i went to webhooks tab but doesnt seem to have any effect. Anyone had this problem?</p>