Chatango is not down due to financial problems or bad management or whatnot. It is down due to a DDoS attack from 4chan. What this means in lamen's terms is that the attacker hacked bots into the site and used them to overload/disrupt chatango's server, causing it to crash. If the site were to be restarted now, then the DDoS will simply crash it again, as seen when it came back up for some minutes mentioned in a recent comment.
The site will return to full speed when the attackers and spam have been removed, or when the site installs a better firewall and/or better defense towards illegitimate users. Chatango's owner is not an idiot, and is likely already working on it, and they have been notified of which IP's are behind the attack. So be patient and give them time to secure the site.
phew hope they fix it soon