Установка adobe-flashplugin на Ubuntu 16.10 для Firefox

Я пытаюсь установить adobe-flashplugin на Ubuntu 16.10 для Firefox. Я использовал следующую команду:

sudo apt-get install adobe-flashplugin

, которая вызывает следующую ошибку:

Err:0 http://archive.canonical.com/ubuntu maverick/partner i386 adobe-flashplugin i386 11.2.202.228-0maverick1
  Insufficient information available to perform this download securely
  Hashes of expected file:
   - SHA1:bff9666cc9f108ae59833a0f44c2499f0a0dd261 [weak]
   - MD5Sum:b92c92245c190c7dc9d4a9bb4bd780c3 [weak]
   - Checksum-FileSize:6591116 [weak]
Err:1 http://archive.canonical.com/ubuntu maverick/partner i386 adobe-flash-properties-gtk i386 11.2.202.228-0maverick1
  Insufficient information available to perform this download securely
  Hashes of expected file:
   - SHA1:5ea9ea111686652665cfca3aa1320b064c4f458f [weak]
   - MD5Sum:2ed1fadfb6a07c3ca8ba9b8f3c774edc [weak]
   - Checksum-FileSize:131074 [weak]
E: Failed to fetch http://archive.canonical.com/ubuntu/pool/partner/a/adobe-flashplugin/adobe-flashplugin_11.2.202.228-0maverick1_i386.deb  Insufficient information available to perform this download securely
   Hashes of expected file:
    - SHA1:bff9666cc9f108ae59833a0f44c2499f0a0dd261 [weak]
    - MD5Sum:b92c92245c190c7dc9d4a9bb4bd780c3 [weak]
    - Checksum-FileSize:6591116 [weak]
E: Failed to fetch http://archive.canonical.com/ubuntu/pool/partner/a/adobe-flashplugin/adobe-flash-properties-gtk_11.2.202.228-0maverick1_i386.deb  Insufficient information available to perform this download securely
   Hashes of expected file:
    - SHA1:5ea9ea111686652665cfca3aa1320b064c4f458f [weak]
    - MD5Sum:2ed1fadfb6a07c3ca8ba9b8f3c774edc [weak]
    - Checksum-FileSize:131074 [weak]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

Как я могу это исправить?