what does it mean when I get this and I cannot setup a pingpong and how can I fix it?

I think it means there's an overlap in the buy and sell values for the order book.
i'm getting it from yesterday when my puter crashed (for other reasons). when i rebooted all my ping pongs were disappeared, so i cancelled all the open orders in Cryptsy and recreated my pingpongs, but i cannot create a btc/ltc one since i have that screen.
maybe because the ltc price in btc crashed from yesterday and CAT sees in my Cryptsy log that I would lose buying btc for ltc now?