Unable to install CUDA toolkit in Jetson Xavier using SDK manager

This is the error i get when i try to execute sudo apt-get update && sudo apt-get check

root123@root123-desktop:~$ sudo apt-get update && sudo apt-get check
[sudo] password for root123: 
Ign:1 https://repo.download.nvidia.com/jetson/common r32.5 InRelease
Ign:2 https://repo.download.nvidia.com/jetson/t194 r32.5 InRelease
Hit:3 http://ports.ubuntu.com/ubuntu-ports bionic InRelease
Err:4 https://repo.download.nvidia.com/jetson/common r32.5 Release             
  Could not handshake: Error in the pull function. [IP: 184.25.239.72 443]
Get:5 http://ports.ubuntu.com/ubuntu-ports bionic-updates InRelease [88,7 kB]  
Err:6 https://repo.download.nvidia.com/jetson/t194 r32.5 Release               
  Could not handshake: Error in the pull function. [IP: 184.25.239.72 443]
Get:7 http://ports.ubuntu.com/ubuntu-ports bionic-backports InRelease [74,6 kB]
Get:8 http://ports.ubuntu.com/ubuntu-ports bionic-security InRelease [88,7 kB]
Get:9 http://ports.ubuntu.com/ubuntu-ports bionic-updates/main arm64 DEP-11 Metadata [288 kB]
Get:10 http://ports.ubuntu.com/ubuntu-ports bionic-updates/universe arm64 DEP-11 Metadata [282 kB]
Get:11 http://ports.ubuntu.com/ubuntu-ports bionic-backports/universe arm64 DEP-11 Metadata [9.272 B]
Get:12 http://ports.ubuntu.com/ubuntu-ports bionic-security/main arm64 DEP-11 Metadata [42,3 kB]
Get:13 http://ports.ubuntu.com/ubuntu-ports bionic-security/universe arm64 DEP-11 Metadata [52,8 kB]
Reading package lists... Done                
E: The repository 'https://repo.download.nvidia.com/jetson/common r32.5 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.
E: The repository 'https://repo.download.nvidia.com/jetson/t194 r32.5 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.