About ark editor problem

Dear sir,
When I install ark editor 1.6, then the GK typography was disappear，could anyone help me to fix it ?

Thank you.

Hi,
it's because Ark editor has its own typography plugin, also based on ajax.
Try to disable one or few Ark editor plugins - just check which one cases issue.

hi,
Thank you, but I disable all ark plugin. It didn't work.

So sorry we cannot help, each plugin have different code - so also from my long experience I know that sometimes it's very hard to find full compatibility between extensions.
Besides I like very much Ark Editor.

Thanks.
I uninstalled ark editor, but GK Typography still disappeared. How do I reinstall it?

Check plugin is he enabled,
typo plugin you will find also in _rest files package

Thank you so much!
But I uninstall GK typography and reinstall it from _rest files.
It showed that "failed to load xml" and "failed to load external entity "file:/E:/xampp/htdocs/easy2do/templates//typography/"
Could you tell me how to fix it?

You have XAMP so all might happens, but ....
before you will give up, just replace files from package manually. All plugins file are in plugins\editors-xtd\gk_typography folder
then check if this feature is enabled also in template settings, search for Typography switch