Why can't my cpmputer be fixed

I believe your SSD is starting to fail. The Kernel Panic report reinforces this diagnosis since it is referencing "nvme" which is your SSD and I don't really see any third party driver issues which might interfere with the macOS NVMe driver. You should see if your laptop qualifies for this free Apple SSD repair program:

https://support.apple.com/13-inch-macbook-pro-solid-state-drive-service

FYI, here is a current list of the publicly acknowledged free repair programs for various Apple products (some products such as your laptop have multiple programs):

https://support.apple.com/service-programs

You should immediately make sure to have a good backup while the SSD is still accessible because the SSD could fail at any time. If it does there is no guarantee that even an expensive professional data recovery service will be able to recover any data from the SSD.

You should always have frequent and regular backups and this includes any external media that has important & unique data. FYI, it is impossible to recover accidentally deleted data from an SSD after the Trash has been emptied plus an SSD can fail at any time without any warning signs (you are lucky that you are getting a warning here).

If the SSD does not qualify for the free SSD repair program, then you may have trouble getting Apple to replace anything until the SSD fails completely since Apple Stores and many AASPs do not look at Kernel Panic logs and the failure likely won't show up on the service diagnostics.

Read what to do "If your Mac starts up to a question mark", click here --> https://support.apple.com/HT204323

However, if Apple technicians cannot find the solution this sounds like something that isn't going to be cured by us posting a link to a document on this forum. We are just Mac users like you, not Apple. I presume you are taking this to an Apple Authorized Service Provider or an Apple Store? You will have to keep working with them until you come up with satisfactory resolution to the issue. If this isn't Apple, you should get Apple to look at it. Good luck!

Mac Service and Repair - Learn how to get your Mac desktop or Mac notebook fixed.

Click here --> https://support.apple.com/mac/repair/service

It would help to know the exact model Mac and the version of macOS. You can get this information by clicking the Apple menu and selecting "About This Mac". To look for possible software issues run EtreCheck and post the report here using the "Additional Text" icon which looks like a piece of paper.