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Xus avatar Ubuntu

See apt-secure(8)

ma flag
Xus

when I enter sudo apt update I get this:

Hit:1 http://mirror.0-1.cloud/ubuntu focal InRelease
Hit:2 http://mirror.0-1.cloud/ubuntu focal-updates InRelease                                                             
Hit:3 http://mirror.0-1.cloud/ubuntu focal-security InRelease                                                            
Hit:4 http://ppa.launchpad.net/go-for-it-team/go-for-it-stable/ubuntu focal InRelease                                    
Hit:6 http://ppa.launchpad.net/linuxuprising/apps/ubuntu focal InRelease                                                 
Hit:7 http://packages.microsoft.com/repos/code stable InRelease                                                          
Hit:8 http://ppa.launchpad.net/otto-kesselgulasch/gimp/ubuntu focal InRelease                                            
Ign:9 https://repo.protonvpn.com/debian stable InRelease                                                                 
Hit:10 https://brave-browser-apt-release.s3.brave.com stable InRelease                                                   
Hit:11 http://ppa.launchpad.net/teejee2008/timeshift/ubuntu focal InRelease                                              
Hit:12 https://download.sublimetext.com apt/stable/ InRelease                                                            
Err:13 https://repo.protonvpn.com/debian stable Release                                                                  
  Could not handshake: Error in the pull function. [IP: 104.26.8.21 443]
Hit:14 http://ppa.launchpad.net/xuzhen666/gnome-mpv/ubuntu focal InRelease                                               
Get:5 http://repo.mysql.com/apt/ubuntu focal InRelease [5,309 B]
Err:5 http://repo.mysql.com/apt/ubuntu focal InRelease
  Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
Reading package lists... Done        
E: The repository 'https://repo.protonvpn.com/debian stable Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://repo.mysql.com/apt/ubuntu/dists/focal/InRelease  Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
E: The repository 'http://repo.mysql.com/apt/ubuntu focal InRelease' is no longer signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

How can I solve this? Any help is highly appreciated.

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user535733 avatar
cn flag
user535733
Does this answer your question? [What can I do if a repository/PPA does not have a Release file?](https://askubuntu.com/questions/866901/what-can-i-do-if-a-repository-ppa-does-not-have-a-release-file)
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karel avatar
sa flag
karel
Does this answer your question? [sudo apt update always giving Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)](https://askubuntu.com/questions/899009/sudo-apt-update-always-giving-clearsigned-file-isnt-valid-got-nosplit-does)
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