I'm no dev, but abandoning quests you've completed would allow a function for players to repeat the quest in question and gain a second reward. However- it would likely fix people who can't complete the quest...
Unfortunately the only option otherwise is to check with the Old Quest Maker Fixer near the train station in Cantermore or to talk with a dev if you catch them around. What quests are you having trouble with?
So I'm pretty sure I heard about this game about 6-7 years ago but I never got to play it since my young mind didn't know how to download a game . I finally got to check this one out and play this game out of boredom, and I think it's pretty nice~ I wish that this community would be more active, though. I've been playing for a couple hours so far and I haven't seen any players around. ;-;
I've been a MLP fan for as long as I can remember, to ^^ My Favorite Pony has always been Rainbow Dash