Just have a silly problem.
Please visit: http://www.endoftheline.co/wp-admin/
And have a different problem: http://www.endoftheline.co/wp-login.php
If anyone can help, I will message anyone with ftp or wp login.
Luis Abarca answers:
Delete or rename the plugin wpanalytics by ftp to disable
Luis Abarca comments:
It looks like the plugins has that error since a long time ago.
Many WP installations and has the same result.