can't edit any pages - seeing blank

Site URL: https://www.studioheavenly.com

Hello,

It's been 3 days that I can't edit my site. I can click on edit, but then when it zooms in all the content becomes invisible, so I can't really edit my site. I tried different browsers and computers. Is this a squarespace issue? I uploaded a picture, I can add spacers etc. But I cannot see them on edit mode.

Have you tried remove all code in Home > Design > Custom CSS & check again?

3 hours ago, tuanphan said:

Have you tried remove all code in Home > Design > Custom CSS & check again?

Yes, still can't edit

I mean; I can, but I don't see anything what I do before I click save and reload the page

3 hours ago, tuanphan said:

Have you tried remove all code in Home > Design > Custom CSS & check again?

I removed this code from header in advanced code injection

<style>
    html.sr .sqs-block { 
      visibility: hidden;
  }
</style> 

and it worked.