Memory test?

I have a question and I got new RAM about a month ago and according to my mainboard he supports it, but before that it had 3000mhz per bar (4x8gb) and now I have the rgb pro from Corsair also 4x8gb, but with 3200mhz is supported according to the mainboard manufacturer. Then I kept having problems with Fortnite that the game crashes, which I never had before. In the beginning I even had a blue screen (2 times) then I did a RAM test and no errors were found, sometimes it is nothing for 1-2 weeks and then like today 2-3 times in a short time, although I have exactly the same applications open have what else could that be, please need help I'm desperate? "Supplement" I did another test and now there's a hardware error. Does anyone know what that means? (Picture attached)

The memory diagnostics tool provided by Windows is very modest. For meaningful results you need Memtest86. It goes much longer and you actually get a cause, not just "Yes, make a mistake".

Explanation: Well, you don't really get the solution directly, but you get the errors described in detail and if you then show experts in certain forums and give them enough information about your PC, etc. They then find out the reason and thus the solution.

Another explanation: If the motherboard does not yet have a UEFI boot, you must use the older version of Memtest86.

Yes, but I can assume that a RAM bar will be broken or if there's a hardware error?

Not really, hardware failure is a VERY VERY vague term.

Yes, I sent it back and ordered a new one at the end. All applications and the browser crashed every 4-5 minutes.