I'm currently working on an MS SharePoint project, and all I added is an CSS file, which isn't the cause of my error.
The sharepoint version is 2010.
O already tried to disable the customised css, but that didn't resolve the problem.
On some times, when i load the homepage and try to click the edit symbol or tab, i get the following error:
Uncaught TypeError: Cannot read property 'PageState' of undefined sp.ribbon.js:2
Help anyone, I can't figure out whats happening there.
Thanks in advance.