CONFIG_DEBUG_ERRORS is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_DEBUG_ERRORS.
Result is shown for kernelversion 5.4.69

Verbose kernel error messages


Linux Kernel Configuration
└─>Kernel hacking
└─>Verbose kernel error messages
In linux kernel since version 2.6.12  
This option controls verbose debugging information which can be
printed when the kernel detects an internal error. This debugging
information is useful to kernel hackers when tracking down problems,
but mostly meaningless to other people. It's safe to say Y unless
you are concerned with the code size or don't want to see these