How can i fix this freetype2 and telegram conflict, terminal says can't find PPA when i try to apt-get update

i'm using deepin right now, and i had an issue with atom and font visualization i had to downgrade it for fix the issue... Now i have this issue in terminal when i try to installa new software or just tryng to update by command..

I'm a newbie with linux i ask experts if is possible to fix this issue without formatting...

Hit:2 http://packages.microsoft.com/repos/vscode stable InRelease
Ign:3 http://ppa.launchpad.net/linuxuprising/java/ubuntu disco InRelease     
Get:1 http://ppa.launchpad.net/atareao/telegram/ubuntu disco InRelease [15.4 kB]
Err:4 http://ppa.launchpad.net/linuxuprising/java/ubuntu disco Release
  404  Not Found [IP: 91.189.95.83 80]
Err:1 http://ppa.launchpad.net/atareao/telegram/ubuntu disco InRelease           
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A9653F936FD5529
Hit:5 http://packages.deepin.com/deepin panda InRelease                          
Reading package lists... Done                         
E: The repository 'http://ppa.launchpad.net/linuxuprising/java/ubuntu disco Release' does not have 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.
W: GPG error: http://ppa.launchpad.net/atareao/telegram/ubuntu disco InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A9653F936FD5529
E: The repository 'http://ppa.launchpad.net/atareao/telegram/ubuntu disco InRelease' is not 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.