iMac 2020 crashes 6-7 times a day

Yes, a very risky move!!!! I suspect the computer may have had problems which prompted the seller to get rid of it. I strongly recommend contacting the seller and returning it ASAP. Did the seller setup the computer for sale per the directions in What to do before you sell, give away, trade in, or recycle your Mac - Apple Support ? If you do not know or the answer is no then return it quickly as it will NEVER be right!!!!!!!!!

Going forward NEVER EVER buy a used Mac from anyone other than Apple's refurbished store (apple.com scroll to the bottom fo the page and select the Refurbished store) or if you cannot afford one of those buy from a trusted reseller such as MacSales.com. Do not purchase from:

• EBay
• Nextdoor
• Facebook Marketplace
• Craig's List
• Your local PC electronics store

Also, I see there is ZERO backup for the data on your computer, this is very short sighted and a 100% guarantee you will lose data!!!!!!!!!!!!! At the very least you should be using Time Machine to backup, if for some reason you are not familar with Time Machine please read Use Time Machine to back up - Apple Support

Best of luck!

HWTech, Dec 8, 2022 8:35 PM in response to finianv

finianv wrote:

x86 CPU CATERR detected

This pretty much says it all. "CATERR" is CATastrophic ERRor and is usually a hardware issue. There is a possibility you may have an external device connected to the USB-C or Thunderbolt port which may trigger an error with the CPU, but otherwise you most likely will need to have the laptop repaired by having the Logic Board replaced.

x86 CPU CATERR Kernel Panic Event - Apple Community