SHA-256 altcoin network stuck at block 31658 - Wallets not synching - HELP!

[ITGeniusGuru]

This happened shortly after the coin got listed on an altcoin exchange and started trading (may or may not have something to do with it).
Now wallets are not synching up and the blockchain is stuck at block 31658 for the last 24 hours. No transactions going through anymore.

getinfo:
version" : 90100,
"protocolversion" : 70001,
"walletversion" : 60000,
"balance" : XXXXX.00000000,
"blocks" : 31658,
"timeoffset" : 2,
"connections" : 1,
"proxy" : "",
"difficulty" : 664.32738060,
"testnet" : false,
"keypoololdest" : 1410497607,
"keypoolsize" : 101,
"paytxfee" : 0.00000000,
"errors" : ""

getminininfo:
blocks" : 31658,
"currentblocksize" : 1000,
"currentblocktx" : 0,
"difficulty" : 664.32738060,
"errors" : "",
"generate" : true,
"genproclimit" : -1,
"hashespersec" : 1847454,
"pooledtx" : 0,
"testnet" : false

Any ideas / suggestions?

Can the blockchain be rolled back safely to a previous checkpoint?

Thanks!

[p2pbucks]

It seems you don't have enough memory to run altcoin daemon , release some memory and restart your altcoin daemon would always solve the problem