Reply 283355 to: Internal Server Error in Customize Mode
Olga Barlow
Support staff
April 9, 2021 at 12:30
Hello, @Natalie
Contact your hosting provider. Ask them to check what blocks the customizer request. Because on different installations it could be different limits. Also, parameter that you need to change depends of web server that you use Nginx or Apache. Server admin should be able to help you if you describe your issue and show him screenshot of the error you have https://prnt.sc/117e86k
