I have a problem of error "file not found" in a site collection SharePoint 2010.
- I cannot access to home page, the page of list/library/permission,etc. All pages will appear an error "file not found"
- I can access to the page of "all content"
- I can access to the site setting page, but I cannot open the link on this page. For example, I select "quick launch" in "Look and feel" section, it will show an error "file not found".
- I think I must reset my master page, but I cannot use SharePoint Designer (forbidden in my application), I cannot open the link on site setting page, and I cannot open library page to check the master page
- I can access to mobile view, and all pages work well in mobile view, but I did not find site setting page
How could I check the master page? Or this problem has other solution?
Thank you in advance.