Hello, I have Generate Press Premium and when I activate a few plugins features, I cannot go customizer because first, it freezes, and then it gives me no response error. If I disable GeneratePress premium. I can access to WordPress customizer normally without crashes.
My server memory limit is 768M.
Plugins that I have installed are Elementor, Elementor Pro, and SG Optimizer which is disabled.
can you double check with your host that the Memory limit is set correctly. Sometimes the WP-config may be set to higher but the server has been capped.