curl step gives error Zorin/Ubuntu

[codeBodger]

I run Zorin OS 15
when running the code given to install this/create the server, the line
curl -sL https://deb.nodesource.com/setup | sudo bash -
doesn't work
Here's the output:

================================================================================
================================================================================

                           SCRIPT DEPRECATION WARNING                         

  This script, located at https://deb.nodesource.com/setup, used to
  install Node.js 0.10, is deprecated and will eventually be made inactive.

  You should use the script that corresponds to the version of Node.js you
  wish to install. e.g.

   * https://deb.nodesource.com/setup_10.x — Node.js 10 LTS "Dubnium"
   * https://deb.nodesource.com/setup_12.x — Node.js 12 LTS "Erbium" (recommended)
   * https://deb.nodesource.com/setup_14.x — Node.js 14 LTS "Fermium"
   * https://deb.nodesource.com/setup_15.x — Node.js 15 "Fifteen"
  Please see https://github.com/nodejs/Release for details about which
  version may be appropriate for you.

  The NodeSource Node.js Linux distributions GitHub repository contains
  information about which versions of Node.js and which Linux distributions
  are supported and how to use the install scripts.
    https://github.com/nodesource/distributions

================================================================================
================================================================================

Continuing in 20 seconds (press Ctrl-C to abort) ...


================================================================================
================================================================================

                              DEPRECATION WARNING                            

  Node.js 0.10 is no longer actively supported!

  You will not receive security or critical stability updates for this version.

  You should migrate to a supported version of Node.js as soon as possible.
  Use the installation script that corresponds to the version of Node.js you
  wish to install. e.g.

   * https://deb.nodesource.com/setup_10.x — Node.js 10 LTS "Dubnium"
   * https://deb.nodesource.com/setup_12.x — Node.js 12 LTS "Erbium" (recommended)
   * https://deb.nodesource.com/setup_14.x — Node.js 14 LTS "Fermium"
   * https://deb.nodesource.com/setup_15.x — Node.js 15 "Fifteen"

  Please see https://github.com/nodejs/Release for details about which
  version may be appropriate for you.

  The NodeSource Node.js distributions repository contains
  information both about supported versions of Node.js and supported Linux
  distributions. To learn more about usage, see the repository:
    https://github.com/nodesource/distributions

================================================================================
================================================================================

Continuing in 20 seconds ...


## Installing the NodeSource Node.js 0.10 repo...


## Populating apt-get cache...

+ apt-get update
Hit:1 http://us.archive.ubuntu.com/ubuntu bionic InRelease
Get:2 http://us.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]   
Get:3 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]    
Ign:4 http://httpredir.debian.org/debian jessie InRelease                      
Get:5 http://security.debian.org jessie/updates InRelease [44.9 kB]            
Hit:6 https://deb.opera.com/opera-stable stable InRelease                      
Get:7 http://httpredir.debian.org/debian jessie-updates InRelease [16.3 kB]    
Get:8 http://us.archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB] 
Hit:9 http://ppa.launchpad.net/zorinos/apps/ubuntu bionic InRelease            
Get:10 http://httpredir.debian.org/debian jessie Release [77.3 kB]             
Get:11 http://httpredir.debian.org/debian jessie Release.gpg [1,652 B]         
Hit:12 https://packages.zorinos.com/stable bionic InRelease                    
Hit:13 http://ppa.launchpad.net/zorinos/drivers/ubuntu bionic InRelease        
Err:5 http://security.debian.org jessie/updates InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9D6D8F6BC857C906 NO_PUBKEY AA8E81B4331F7F50
Hit:14 https://packages.zorinos.com/patches bionic InRelease                   
Hit:15 https://packages.zorinos.com/apps bionic InRelease                      
Hit:16 http://ppa.launchpad.net/zorinos/patches/ubuntu bionic InRelease        
Hit:17 https://packages.zorinos.com/drivers bionic InRelease                   
Err:7 http://httpredir.debian.org/debian jessie-updates InRelease              
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7638D0442B90D010
Hit:18 http://ppa.launchpad.net/zorinos/stable/ubuntu bionic InRelease         
Ign:11 http://httpredir.debian.org/debian jessie Release.gpg
Reading package lists... Done   
W: GPG error: http://security.debian.org jessie/updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9D6D8F6BC857C906 NO_PUBKEY AA8E81B4331F7F50
E: The repository 'http://security.debian.org jessie/updates 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.
W: GPG error: http://httpredir.debian.org/debian jessie-updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7638D0442B90D010
E: The repository 'http://httpredir.debian.org/debian jessie-updates 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.
W: GPG error: http://httpredir.debian.org/debian jessie Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7638D0442B90D010 NO_PUBKEY CBF8D6FD518E17E1
E: The repository 'http://httpredir.debian.org/debian jessie Release' 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.
Error executing command, exiting

I have no idea what this means
Any help is welcome