vagabond3616 I am not an expert on this. But I think this part is probably key:
reset message: KP: Watchdog detected hard LOCKUP on cpu 1
For some reason, at least one of the processor cores has stopped running (when it was supposed to be running). If it is happening often then it seems plausible that there is a hardware failure. I think the report indicates that the program counter on each of the cores is zero. If so, that seems disturbing (though, again, I am not an expert on this).