I have been mining for half an hour and my balance has not changed at all .. several blocks have already been found. What is the reason for this problem?
https://pool.getlotto.io/#worker_statsTayCBcLsUGX1euuVHJQwNm39WdEZS5KNWEoVUi2YSWgS5yAMph99LTb6pqXg39SiTKNVS4agautn4gJ
YKqgrc6tz5Ji6MEDssU.ca852ab1ccf0533b
and in there still not found a block.