Theme Customizer Not Working || Showing Page Not Found Error

Hello,

Try to disable mod_security on your server. It seems to block the Theme Settings “save” requests. Contact your hosting provider for help.

Kind Regards

Hello,

Could you please disable all plugins that are not related to our theme and provide us your admin access so we could check it?

Thank you in advance

There is a Private content field that visible to our support staff and you only. You can safely post your website information there.

We are not able to view your website and it doesn’t load for us. Please, disable all external plugins as well as our theme so we can open your website and check what is wrong.

There is 503 error generated by your server https://gyazo.com/f70dcd91bfd62f72743eff7dd4a7ed13
Try to contact your hosting provider for help on this matter.
500 Internal Error is a generic error and says about some issue on the server and can be caused by different things. Anyway, to understand its nature you need to see your server error logs or enable PHP error display on the website. If you can’t do this, you need to contact your hosting provider for help in this question. Here is an article that may help you understand the error better http://www.wpbeginner.com/wp-tutorials/how-to-fix-the-internal-server-error-in-wordpress/

Regards