HA Green many times crashes

crashes many times
I have had 5 crashes since december 2024,
again this morning and mostly at midnight.

I did all the updates after this crash and now HA is running again with the latest software (maybe until the next time?)

can anyone explain this to me ? why do these crashes keep happening ?

No one can answer you because you didn’t provided any additional info.
Maybe you can’t get logs when it crashes but something more would be helpful to others who might try to help you.
System usually crash due to high cpu usage, running out of memory or some process start to use all resources and system became unavailable or unresponsive.