Hi,

I buy the plugin "CKEditor Templates", but I did not manage to add it.

Error : 1C120/9 The plugin does not appear to be valid. Make sure that you have uploaded the plugin exactly as you downloaded it.

Do you have a solution?

http://doksoft.com/support.html  I would make sure it's for the latest version of CKE, it doens't state on their product page what version it works with.