I'm on Magento 22.214.171.124 and everything is working well but if i try to generate Content via CMS/Pages/New Page i´ve got a big problem.
When i fill out the forms for a new Page I get this error under the URL Key Field in the "Page Information" Area:
Please enter a valid URL Key. For example "example-page", "example-page.html" or "anotherlevel/example-page".
I can't save this page due to this error. Even if I try to edit an existing page i get this error.
Do I have to define special URL Keys anywhere? What can I do?