How severe are those problems within the code and are the right devs available to sort that out?
I don't know the details (a couple of posts above are some links to related discussions but I don't see too much details there, too) but the database issue seems to have lead to exchanges delisting it. So I guess it was leading to crashes.
Regarding your second question, one of the participants of the discussion in the last three pages has stated that there was a developer interested to fix the bug, but he got no response from the "main developer". So if this developer is still here, the answer would be affirmative.
(That is why I'm opposed to such centralized development models. Cryptocurrencies must be decentrally managed or _many_ things can go wrong.)
hm, yes, then the problem was indeed not marginal if they delisted the coin. Can't the new dev just start working or does the main dev have full control over the relevant resources? I assume it's all open source, no?