MAGETWO-81525: Fix email not sent when sitemap generation has errors #11320

 - Merge Pull Request magento/magento2#11320 from marinagociu/magento2:fix-undefined-property-translateinline
 - Merged commits:
   1. 0888e8ce
   2. 3fc3c1dc
   3. 3c3168bd
   4. 86f1419e
   5. 16590f01