Your internet may not be strong enough to connect maybe or there are just too many people online at the moment. You can try a little later during the day though when theres less people online, or you can just keep trying. Make sure your internet has full connection to your internet provider.
In Map Maker you can create your own worlds, then you can play and explore them as a lion. It will start out as a block of land so you can easily create over it.
In Preset Maker you can make characters that you cannot make in-game.
In Object Maker you can download or make objects to use in maps.
In Sky Maker you can make skies and weathers for your maps.
These things are there to let you use your creativity, there are plenty of tutorials though in the link below. If you still cant connect after a while, i would suggest making things like maps and presets if you get bored.
http://www.feral-heart.com/index.php?option=com_jfusion&Itemid=2&jfile=index.php&topic=18898.0If you look around the forum you can find other peoples maps, presets, objects and more. You can get an idea on what to do then.