What should i write after getblockhash ?

txid= 07ec7d9354272c6163b5d11911bfcfa7e459f1ab988ff1bcd0aa395b49ca1c1e-000

I also want to note that the wallet behaves very unstable when trying to heat-mine. Even if I use 30% it closes (without messages) after 30-60 minutes, not to mention 60-80-100% load.