Last few days we were working with Steffen on improving quests and items.
We tried to fill the gap in item levels. We fixed also quests rewards to be suitable to level needed to accomplish each quest. There should be now more higher level items. Some of them were added to shops, other to quests, drops, etc. Some low level items become now high level items. If you have them you are lucky now

However you can't use them if your level is below required level, you can wait until you reach required level or sell them.
Also now you need at least game version 4.0 to play (which was released long time ago on Sep 17, 2014). Version 3.x is no longer supported.