Display MoreFailing the adult class means you need to try it again and do it but this time don't fail.
I've given you all the information you will need in the previous comments in this thread but here they are again.
it says previous quests completed because you need to do the level 15, 20 , and 25 flight quests. they are in the flight guide i sent you.
Masterclass is the second class you obtain after you become an adult which i have given you the guide for also
Both guide contain step by step instructions along with pictures so if you be patient and do it slowly you will be fine.
As said before too. I suggest you hand in or remove all other quests from your quest list and inventory. You can do this by pressing "J" and clicking each one and doing it there.
Once you've done that log out and log back in.
Then right click the red ticket. if it says quest failed it means you already did this part and handed it in. then follow the guide to complete your quest. If you have any trouble read through my messages here as you have everything you need.
It seems as if I've encountered an abrupt stop... Do I have to do all the quests near "The Great Tree" in order to continue my progression. I read that somewhere in one of your guides.