Migrating Wordpress site to Drupal 8

Hello,

Unfortunately I am unable to provide any of the XML file for the error but I have included some screen shots.

I am attempting to migrate a wordpress site to drupal 8; following this guide (https://www.agiledrop.com/blog/migrate-wordpress-drupal). However when i attempt to execute the migration. I receive an error page stating, "The website encountered an unexpected error. Please try again later." Any ideas on how to fix this?

If you need anymore information, I will be able to provide.

Thanks,