We are still waiting on a response from the client regarding the browser extensions.
She is using Chrome. We did have her test updating the website in an incognito window to see if it was the cache causing the error – she still received an error.
We also had her test updating the website in a different browser – she used Firefox. She still received the error.
She tested updating the site on 2 different computers – they both were on the same network. One computer is Windows 10 and the other is Windows 8. Both gave errors as well.
She said she tested updating the website on her phone, using her data, and still received an error.
We are having trouble fixing the issue for her, because we cannot recreate the situation on our end.