This is the reply from Support Ticket
"A few (relatively low volume) coins are currently unavailable due to daemon codebase issues. They will be available shortly, and your coins our safe! We will be making a blog post about these coins shortly. Please check out blog at
http://blog.moolah.io/"
What does a daemon codebase issue means? I'm not so much into that technical stuff
This could be problem with the back part of the code of some wallets, but anyway is an automatic reply, and not the case of faircoin.
the faircoin is a unic situation in mintpal because they forgot to move the balances from FAIR because they done it with FAC code...