Upgrade Broke my site

Issue Summary

I got these warnings followed by a SQL gone away query warning immediately after upgrading to the latest version.

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of user_register_notify_setup_email(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /home/content/s/h/a/shantijoonu/html/drupal_dev/sites/all/modules/user_register_notify/user_register_notify.module on line 70

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of user_register_notify_setup_email(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /home/content/s/h/a/shantijoonu/html/drupal_dev/sites/all/modules/user_register_notify/user_register_notify.module on line 70

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of user_register_notify_setup_email(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /home/content/s/h/a/shantijoonu/html/drupal_dev/sites/all/modules/user_register_notify/user_register_notify.module on line 74

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of user_register_notify_setup_email(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /home/content/s/h/a/shantijoonu/html/drupal_dev/sites/all/modules/user_register_notify/user_register_notify.module on line 74