Guust

Popular is the title of the widget, you are the one that chooses what popular means like Simone says. GD does not determine that, you choose it.

Have you cleared your geolocations?
http://docs.wpgeodirectory.com/faqs/how-can-i-clear-geo-location-settings/

The event addon is undergoing a major rewrite and soon we will release a much improved events addon. Cannot really say when exactly.

You need to sync your accounts to get updates and support: http://docs.wpgeodirectory.com/category/geodirectory-support/

You can use location slugs in your URLs at any time, but the option to only use city can only be used when you set GD to only use default country and region at GD > multilocation > settings.

Your category pages seem fine to me.

If using multi countries or multi regions, you cannot use “Add city slug in listing urls” at GD > permalinks.
Because there might be a city with the same name in two regions for eexample.
I changed that for you. Let us know if that fixes your issue.

@design
There is an update planned just to fix that bug, and will be pushed out very soon. You can just wait for that if you like.

You can always change the CSS of the textbox itself, look for .advmap_nofound.
Add this:

.advmap_nofound {width: your image width; height: your image height;}