Cannot understand why I didnt get any POS block(even rejected) after ~12hr staking with 1m expected time. Is there something I need to do with config/options before staking?

getstakinginfo:
{ "enabled" : true,
 "staking" : true,
"errors" : "",
"currentblocksize" : 1000,
"currentblocktx" : 0,
"pooledtx" : 0,
"difficulty" : 5.59393105,
"search-interval" : 16,
"weight" : 6480198748,
"netstakeweight" : 6178309369,
"expectedtime" : 57 }