package zfs-dkms 0.8.4-1ubuntu11.1 failed to install/upgrade: installed zfs-dkms package post-installation script subprocess returned error exit status 10

[MOHAMMAD SABOORSHEIKHI]

install zfs-dkms on ubuntu with kernel 5.11.0-rc7

ProblemType: Package
DistroRelease: Ubuntu 20.10
Package: zfs-dkms 0.8.4-1ubuntu11.1
Uname: Linux 5.11.0-rc7 x86_64
ApportVersion: 2.20.11-0ubuntu50.5
AptOrdering:
 zfs-dkms:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Wed Feb 10 23:23:26 2021
ErrorMessage: installed zfs-dkms package post-installation script subprocess returned error exit status 10
PackageArchitecture: all
Python3Details: /usr/bin/python3.8, Python 3.8.6, python3-minimal, 3.8.6-0ubuntu1
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.20.5ubuntu2
 apt 2.1.10ubuntu0.2
SourcePackage: zfs-linux
Title: package zfs-dkms 0.8.4-1ubuntu11.1 failed to install/upgrade: installed zfs-dkms package post-installation script subprocess returned error exit status 10
UpgradeStatus: No upgrade log present (probably fresh install)