Cache Hierarchy Error

[Nuclearonion]

So I have been running a 9900k in my msi Z390-A Pro for about a year with no issues or errors. The cpu has always boosted up to 4.7ghz stable. The other day I was looking at task manager and noticed i had forgotten to set my ram to full speed. My ram sticks are Corsair lpx 3000mhz ddr4. I went into the bios to turn on xmp. While i was there i noticed the overclocking Guinee. I thought i would turn it on to see if i could get any higher clocks on the cpu. Once i got back into windows my ram was fine at 3000mhz but my cpu clock was bouncing around all over place. Between the 4.7ghz it manged before and up to 4.9ghz. Later on in the day i was playing Rainbow six siege and the pc bluescreened. I think it was "Clock_watchdog_timeout" but I am not 100% sure as i don't remember too well. Anyway after this i disabled both xmp and overclocking Guinee as the pc had been fine for a year prior to changing those 2 settings. The pc seemed to run fine after disabling those 2 settings and the cpu is stable once again at 4.7ghz. However i noticed that videos would reload a couple of times before playing and that concerned me. So i thought i would check event viewer and that's how i found these warnings. The reloading has since stopped and i am not having any crashes or freezing so far. I tried running cinebench and actually got a better score then the benchmark i tested when i first built the pc. Any help understand what this issue is or how to fix it would be great. Should i even be worried since the system seems to be running fine now?