dnf update failed in oracle linux

Hello all,

I stuck in dnf update in oracle linux.

my /etc/yum.conf:

[main]
gpgcheck=1
installonly_limit=3
clean_requirements_on_remove=True
best=True
skip_if_unavailable=False
#exclude=python2-leapp,snactor,leapp-upgrade-el7toel8,leapp

/etc/yum.repos.d/local-oracle-linux-ol8.repo

[ol8_baseos_latest]
name=LOCAL - Oracle Linux 8 BaseOS Latest
baseurl=http://<REMOVED>/ol8_baseos_latest/
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
gpgcheck=1
enabled=1

[ol8_appstream]
name=LOCAL - Oracle Linux 8 Application Stream
baseurl=http://<REMOVED>/ol8_appstream/
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
gpgcheck=1
enabled=1

[ol8_addons]
name=LOCAL - Oracle Linux 8 Addons
baseurl=http://<REMOVED>/ol8_addons/