nvidia-kernel-source-450-server 450.142.00-0ubuntu0.20.04.1: nvidia-srv kernel module failed to build

when i was trying to install nvidia-driver-470 or nvidia-driver-460, there was an error. so instead, i then tried to install nvidia-driver-450-server, and i thought it would be working.
right now, i do not have a nvidia-driver installed and this is sad because my machine got a nvidia graphic card rtx-5000.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: nvidia-kernel-source-450-server (not installed)
ProcVersionSignature: Ubuntu 5.8.0-63.71~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-63-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
DKMSKernelVersion: 5.8.0-63-generic
Date: Fri Jul 23 16:25:16 2021
InstallationDate: Installed on 2021-06-13 (40 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
PackageVersion: 450.142.00-0ubuntu0.20.04.1
Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.6
SourcePackage: nvidia-graphics-drivers-450-server
Title: nvidia-kernel-source-450-server 450.142.00-0ubuntu0.20.04.1: nvidia-srv kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)