Go to VMware Compatibility Guide, search for your server model, and confirm that your server runs a BIOS (firmware) version that is compatible with ESXi 6.7 that you're trying to install.
If it is not compatible, then consult Dell to upgrade the BIOS to the required version.
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As per the screenshot shared, the backtrace are the cpu registers error code.
Can you provide us more details of when exactly you see the error.
- Is it after initiating the installation using the ISO ?
- You can try the installation attempt using the cd/dvd or virtual drive or an SD card to verify if the behavior is same or is it a problem occurred only with the usb stick.