Code:

2021-06-24 23:28:48 power voltage can not meet the target
2021-06-24 23:28:50 power voltage can not meet the target
2021-06-24 23:28:53 power voltage can not meet the target
2021-06-24 23:28:53 Sweep error string = V:1.
2021-06-24 23:28:53 ERROR_POWER_LOST: get power type version failed!
2021-06-24 23:28:53 stop_mining: get power type version failed!

It seems it still a PSU issue, not a fan issue because according to your log it passed the fan check look below

Code:

2021-06-24 23:28:00 Fan check passed.

But the error above about power voltage, it didn't meet the target or it's not giving enough power from PSU that is why it's not hashing.

Try to reconnect the PSU remove them from the board and plug it again and test.