There is a problem with updating the classic specific files
Files are organized using metadata and benefit from all the available document management capabilities If you want to familiarize yourself with the magic of document sets – check out this post which explains what they are all about and how to set them up.
At times, while browsing with your Internet Explorer web browser on a Windows computer, you may not be able to open a web page.
IE may instead display a message There is a problem with this website’s security certificate and suggest possible actions for you to take.
If you see this message frequently, here are a few steps you can take: 1] If it indeed is a genuine cause, the website owner/host can purchase a certificate for each Web server from proper authorities.
In case you require clarification on the difference between the two, check out this post.