The error that I get on phpMyAdmin is the following
The phpMyAdmin configuration storage is not completely configured, some extended features have been deactivated."
I have googled and looked this up for a while now and the common answer that comes up is to Log Out/In or the clear the cookies and cache. Clearing the cookies and caches did not work for me. I have tried to logout, but cannot seem to be able to find out how to, because in the updated version of phpMyAdmin, I believe that there is no logout button as opposed to the older versions which is why people posted that as a solution before. I am not sure what version of phpMyAdmin I have because I downloaded it through xampp, but this is what mine looks like:
click on this button out your phpAdmin home page