Hello and welcome!
I'm very sorry to hear about your issues. I see that you are using two RAM sticks. Have you tried using only one and monitoring for crashes?
Have you tested each of the stick separately for eight passes? Have you tested the HDD/SSD?
Is the PSU new or the original one? Has it ever been replaced?
Are you doing any overclocking of your system?
Unfortunately, your latest dump was empty, so I couldn't analyze the dump file, but if/when it happens next time, please attach the dump, and I'll see if I can do something with it.