Hi all,
I've installed a Sharepoint site for my team. Everything work fine. But suddenly, I've found that I can not edit the quicklaunch menu: every time I click on Add Item or edit an Item, I get a 403 error.
I've logged with administrator account. I've tried using different browsers such as chrome, firefox, but no hope. The same errors occur when I access Advanced permissions under User and Permission.
Clicking to edit permissions for any group in the list will also cause a 403 error. I think that I may have done some wrong setting with permissions, but I can not figure out what I have done, as I'm pretty new with Sharepoint.
Can you guys tell me how to troubleshoot this problem?
Regards,