Problem with Parallax One Wordpress Theme

Hello, I have a serious problem with the Parallax One theme. When I try to change something, for example, in the contact form or in services, I get the message: “Something went wrong, the changes will not be saved. Try later”. This happens when I want to use f.e. “a href =”, “mailto:” Best regards… Dominik

I have the parallax problem in my wordpress sites. Can you please check my sites and tell me how to fix?

https://bestpressurewasherguide.com/

https://bestdishwasherguides.com/ 

I am facing the same issue in my website,.If anyone have solution. Kindly lt me know … Thanks