Problem, install the plug Are setting_post_thanks.tpl template on this path ?

Are setting_post_thanks.tpl template on this path ?

admincp/cpstyles/templates/setting_post_thanks.tpl

And make sure it is not empty

It is dedicated to template settings post thanks 2.0 addon, It is created automatically when Import addon


If you do find it, you have a problem in the Permission folder templates , I think

If you've translated that perhaps there is an error in the translation impact on his appearance
It prefers to put it in the attachments to do preview and experience