I have a up to date Magento System. But for some reason when I am in the backend and want to edit a page or a static block, I cant switch from the HTML view to the text/visual view. If I click the (sry, dont know how it is in english ) "switch on editor", this is what my console says
What I tried: I uploaded the js files from a fresh magento installation but this didnt help.
I uploaded the tinymce plugin folder from a fresh magento - didnt help.
Anyone an idea what I can try / how to fix this?