Reply To: the customize screen is not loading.

[Tom]

Glad you found the problem plugin 🙂

For other experiencing the same issue, we have an article here that can help you figure out the cause: https://generatepress.com/knowledgebase/debugging/

Documentation: http://docs.generatepress.com/
Adding CSS: http://docs.generatepress.com/article/adding-css/
Ongoing Development: https://generatepress.com/ongoing-development