title: Prestashop : trying to add product from admin get blank page
body: <p>I had tried to add product from admin get blank page after click on save button.</p>
  
  <p>I enabled define('_PS_MODE_DEV_', true); but still I dont get any error in admin.</p>
  
  <p>I had also enabled define('_PS_DEBUG_PROFILING_', true); </p>
  
  <p>I get page like screen shot.</p>
  
  <p><a href="https://i.stack.imgur.com/6RYvf.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6RYvf.png" alt="enter image description here"></a></p>