Failed to Start. Load Kernel Modules

Need some advice here.

In my boot, I have

total 4684
drwxr-xr-x 6 root root    4096 Feb  1 11:13 grub
-rw-r--r-- 1 root root 4769792 Jun  9  2021 intel-ucode.img
-rw-r--r-- 1 root root      27 Jan 10 21:41 linux-510-rt-x86_64.kver
-rw-r--r-- 1 root root      27 Jan 10 21:44 linux-515-rt-x86_64.kver
-rw-r--r-- 1 root root      22 Jan 20 20:45 linux510-x86_64.kver
-rw-r--r-- 1 root root      21 Dec 22  2020 linux510-x86_64.kver.old
drwxr-xr-x 2 root root    4096 Jul 23  2021 memtest86+

Am I correct to think that Grub needs to find boot/vmlinuz rather than kver?