doesnt work with the latest wordpress

Hi
Do you have a solution for the plugin?
When i updated to the latest wordpress the plugin didn´t work anymore.
I cant go in to the editor og the editor in the frontpage backend is blank. If i try to delete some other plugins i can get in the editor and see the text, but i cant use the plugin.
The funny thing is, that it works on my site http://www.zorbas.se but not on http://www.zorbas.dk

Is there a solution or update for this?

https://ww.wp.xz.cn/plugins/wordpress-seo/