Ubuntu error

Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  libc++1 linux-headers-4.10.0-28 linux-headers-4.10.0-28-generic
  linux-headers-4.10.0-33 linux-headers-4.10.0-33-generic
  linux-image-4.10.0-28-generic linux-image-4.10.0-33-generic
  linux-image-extra-4.10.0-28-generic linux-image-extra-4.10.0-33-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be upgraded:
  adobe-flash-properties-gtk adobe-flashplugin distro-info-data
  libgnutls-openssl27 libgnutls30 oracle-java8-set-default
6 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
Need to get 10.5 MB of archives.
After this operation, 1,024 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 distro-info-data all 0.28ubuntu0.5 [4,224 B]
Get:2 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 libgnutls-openssl27 amd64 3.4.10-4ubuntu1.4 [22.0 kB]
Get:3 http://ppa.launchpad.net/webupd8team/java/ubuntu xenial/main amd64 oracle-java8-set-default all 8u151-1~webupd8~0 [6,788 B]
Get:4 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 libgnutls30 amd64 3.4.10-4ubuntu1.4 [548 kB]
Get:5 http://archive.canonical.com/ubuntu xenial/partner amd64 adobe-flash-properties-gtk amd64 1:20171025.1-0ubuntu0.16.04.1 [142 kB]
Get:6 http://archive.canonical.com/ubuntu xenial/partner amd64 adobe-flashplugin amd64 1:20171025.1-0ubuntu0.16.04.1 [9,734 kB]
Fetched 10.5 MB in 7s (1,419 kB/s)
Setting up oracle-java8-installer (8u151-1~webupd8~0) ...
Installing from local file /var/cache/oracle-jdk8-installer/jdk-8u151-linux-x64.tar.gz
Removing outdated cached downloads...
sha256sum mismatch jdk-8u151-linux-x64.tar.gz
Oracle JDK 8 is NOT installed.
dpkg: error processing package oracle-java8-installer (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 oracle-java8-installer
E: Sub-process /usr/bin/dpkg returned an error code (1)