Got lots of those "too many files open" errors too, i did this:
nano /etc/security/limits.conf
added this:
* soft nofile 8192
* hard nofile 65536
We'll see if that worked.

Sorry everyone mining at my node for the downtimes...
edit: nope, crashed again. /proc/sys/fs/file-max was at 2465517 already, so i switched back to the bitvolcano code.
edit2: changed hard nofile to 65536 too, it should work now...