Issue in phpMyAdmin
count(): Parameter must be an array or an object that implements Countable
What is happening?
This error, and some others like it, are caused by a compatibility issue between the running PHP version ( which is likely 7.2 ) and the active phpMyAdmin version.
Allthough this is annoying, this is nothing to worry about, as there is nothing wrong with your application.
Our engineers are working to fix this issue by updating all phpMyAdmin versions, but this will take some time.
More information: phpMyAdmin documentation