What is core.xxx in API

[GopiSaha]

Hello Everyone ,
As I noticed I have 6GB core.xxxx
On /usr/local/cwpsrv/var/services/api/v1

here is screenshot https://prnt.sc/12wu3k6

can You tell me what is this . and can I delete all ?
Is it come error if I delete ?

Thanks in advance

[ghoste]

I also have something like this on several cwp pro servers, but at DNS Functions-List DNS Zone - and core.29769 appears, which I can't edit, I opened a ticket without solving it, a few months passed and nothing , maybe someone knows what it's about ...
I attached the link : https://prnt.sc/12x93xr

[cyberspace]

The core files are dump files created by the system when scripts crash.  The core dump files are used to investigate why the scripts finished abnormally. It is safe to remove the core.xxx files.

More about core dump files you can find here:
https://wiki.archlinux.org/title/Core_dump