You are not performing cold storage backups frequently enough.
There is generally little need for cold storage backups of most Hashharder pools due to the very low amount of coins on them. As the coins are paid to the miners, this is not the same situation as a pool that collects and keeps the coins the miners mine.
i was referencing your own coins. you said you lost 500,000 of your own coins.
Thats about .1 BTC, or $62,00 USD.
You could use a month old wallet.dat and resync to get your coins back. But without a backup....................*