You have some Active Directory groups that have more than {0} members. This will block directory synchronization. You can ...

You have some Active Directory groups that have more than {0} members.  This will block directory synchronization.  You can see a list of these users by opening Windows explorer and reviewing the files in folder Office365logs on your computer. Click on the link 'get help fixing this issue' in the actions pane located on the right side of the screen for assistance.