Conerstone not working: 404-error

First Cornerstone didn’t load: the logo kept spinning after clicking the button ‘Edit with Cornerstone’.
After searching and reading in the Support-forum, I cleaned browser cache. Now clicking the button ‘Edit with Cornerstone’ results in showing the custom 404-page.

Loading the editor in another browser (Firefox instead of Chrome), still gives the ever spinning Cornerstone-logo.

Help is desperately needed… Many thanks in advance.

Wim

Hi There,

Make sure your permalinks are set to post name.

If that does not help, please provide your login credentials so we can take a closer look.

Thank you