Customizer Getting 500 Error

Hi Vlad,
Love the Sydney Pro theme. I’m having a problem customizing it though. For some reason when I click customize I am getting a 500 Server Error. This is only happening with Sydney and not the other themes.
Any ideas?
Thanks

Hi,

Might be a conflict with some of your plugins. Did it always happen? Please disable some of your plugins and recheck.

Thanks. Resolved…