I can't update for some reason. I keep getting an error each time sudo apt-get update.
sudo apt-get update
Get:1 http://us.archive.ubuntu.com/ubuntu focal InRelease [265 kB]
Get:2 http://packages.microsoft.com/repos/vscode stable InRelease [3,959 B]
Get:3 https://packages.microsoft.com/ubuntu/20.04/prod focal InRelease [10.5 kB]
Get:4 https://dl.winehq.org/wine-builds/ubuntu focal InRelease [6,257 B]
Get:5 http://us.archive.ubuntu.com/ubuntu focal-security InRelease [107 kB]
Get:6 http://us.archive.ubuntu.com/ubuntu focal-updates InRelease [111 kB]
Get:7 http://packages.microsoft.com/repos/vscode stable/main amd64 Packages [199 kB]
Get:8 http://us.archive.ubuntu.com/ubuntu focal-backports InRelease [98.3 kB]
Get:9 http://ppa.launchpad.net/lutris-team/lutris/ubuntu focal InRelease [18.0 kB]
Get:10 http://apt.pop-os.org/proprietary focal InRelease [8,435 B]
Get:11 https://packages.microsoft.com/ubuntu/20.04/prod focal/main amd64 Packages [28.2 kB]
Get:12 http://us.archive.ubuntu.com/ubuntu focal/restricted Sources [6,472 B]
Get:13 http://us.archive.ubuntu.com/ubuntu focal/main Sources [847 kB]
Get:14 http://us.archive.ubuntu.com/ubuntu focal/universe Sources [9,707 kB]
Get:15 https://dl.winehq.org/wine-builds/ubuntu focal/main amd64 Packages [92.5 kB]
Ign:16 http://ppa.launchpad.net/mdeguzis/libregeek/ubuntu focal InRelease
Get:17 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu focal InRelease [17.5 kB]
Get:18 https://dl.winehq.org/wine-builds/ubuntu focal/main i386 Packages [94.2 kB]
Get:19 http://us.archive.ubuntu.com/ubuntu focal/multiverse Sources [174 kB]
Get:20 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages [970 kB]
Get:21 http://apt.pop-os.org/proprietary focal/main amd64 Packages [6,472 B]
Get:22 http://us.archive.ubuntu.com/ubuntu focal/main i386 Packages [718 kB]
Get:23 http://us.archive.ubuntu.com/ubuntu focal/main Translation-en [506 kB]
Get:24 http://ppa.launchpad.net/system76/pop/ubuntu focal InRelease [18.0 kB]
Get:25 http://us.archive.ubuntu.com/ubuntu focal/main amd64 DEP-11 Metadata [494 kB]
Get:26 http://us.archive.ubuntu.com/ubuntu focal/main DEP-11 48x48 Icons [98.4 kB]
Get:27 http://us.archive.ubuntu.com/ubuntu focal/main DEP-11 64x64 Icons [163 kB]
Get:28 http://us.archive.ubuntu.com/ubuntu focal/main DEP-11 64x64@2 Icons [15.8 kB]
Get:29 http://us.archive.ubuntu.com/ubuntu focal/main DEP-11 128x128 Icons [367 kB]
Get:30 http://apt.pop-os.org/proprietary focal/main all Packages [1,028 B]
Get:31 http://us.archive.ubuntu.com/ubuntu focal/main amd64 c-n-f Metadata [29.5 kB]
Get:32 http://us.archive.ubuntu.com/ubuntu focal/restricted amd64 Packages [22.0 kB]
Get:33 http://us.archive.ubuntu.com/ubuntu focal/restricted i386 Packages [8,112 B]
Get:34 http://us.archive.ubuntu.com/ubuntu focal/restricted Translation-en [6,212 B]
Get:35 http://us.archive.ubuntu.com/ubuntu focal/restricted amd64 c-n-f Metadata [392 B]
Get:36 http://us.archive.ubuntu.com/ubuntu focal/universe i386 Packages [4,642 kB]
Get:37 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 Packages [8,628 kB]
Get:38 http://ppa.launchpad.net/tatokis/ckb-next/ubuntu focal InRelease [24.3 kB]
Get:39 http://us.archive.ubuntu.com/ubuntu focal/universe Translation-en [5,124 kB]
Get:40 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 DEP-11 Metadata [3,603 kB]
Err:41 http://ppa.launchpad.net/mdeguzis/libregeek/ubuntu focal Release
404 Not Found [IP: 91.189.95.83 80]
Get:42 http://us.archive.ubuntu.com/ubuntu focal/universe DEP-11 48x48 Icons [3,016 kB]
Get:43 http://us.archive.ubuntu.com/ubuntu focal/universe DEP-11 64x64 Icons [7,794 kB]
Get:44 http://ppa.launchpad.net/lutris-team/lutris/ubuntu focal/main i386 Packages [640 B]
Get:45 http://ppa.launchpad.net/lutris-team/lutris/ubuntu focal/main amd64 Packages [688 B]
Get:46 http://us.archive.ubuntu.com/ubuntu focal/universe DEP-11 64x64@2 Icons [44.3 kB]
Get:47 http://us.archive.ubuntu.com/ubuntu focal/universe DEP-11 128x128 Icons [14.3 MB]
Get:48 http://ppa.launchpad.net/lutris-team/lutris/ubuntu focal/main Translation-en [316 B]
Get:49 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu focal/main i386 Packages [2,924 B]
Get:50 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu focal/main amd64 Packages [4,200 B]
Get:51 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 c-n-f Metadata [265 kB]
Get:52 http://us.archive.ubuntu.com/ubuntu focal/multiverse i386 Packages [74.7 kB]
Get:53 http://us.archive.ubuntu.com/ubuntu focal/multiverse amd64 Packages [144 kB]
Get:54 http://us.archive.ubuntu.com/ubuntu focal/multiverse Translation-en [104 kB]
Get:55 http://us.archive.ubuntu.com/ubuntu focal/multiverse amd64 DEP-11 Metadata [48.4 kB]
Get:56 http://us.archive.ubuntu.com/ubuntu focal/multiverse DEP-11 48x48 Icons [23.1 kB]
Get:57 http://us.archive.ubuntu.com/ubuntu focal/multiverse DEP-11 64x64 Icons [192 kB]
Get:58 http://us.archive.ubuntu.com/ubuntu focal/multiverse DEP-11 64x64@2 Icons [214 B]
Get:59 http://us.archive.ubuntu.com/ubuntu focal/multiverse DEP-11 128x128 Icons [326 kB]
Get:60 http://us.archive.ubuntu.com/ubuntu focal/multiverse amd64 c-n-f Metadata [9,136 B]
Get:61 http://us.archive.ubuntu.com/ubuntu focal-security/multiverse Sources [716 B]
Get:62 http://us.archive.ubuntu.com/ubuntu focal-security/restricted Sources [4,192 B]
Get:63 http://us.archive.ubuntu.com/ubuntu focal-security/main Sources [54.3 kB]
Get:64 http://us.archive.ubuntu.com/ubuntu focal-security/universe Sources [10.1 kB]
Get:65 http://us.archive.ubuntu.com/ubuntu focal-security/main amd64 Packages [184 kB]
Get:66 http://us.archive.ubuntu.com/ubuntu focal-security/main i386 Packages [72.7 kB]
Get:67 http://us.archive.ubuntu.com/ubuntu focal-security/main Translation-en [65.5 kB]
Get:68 http://us.archive.ubuntu.com/ubuntu focal-security/main amd64 DEP-11 Metadata [24.3 kB]
Get:69 http://us.archive.ubuntu.com/ubuntu focal-security/main DEP-11 48x48 Icons [11.0 kB]
Get:70 http://us.archive.ubuntu.com/ubuntu focal-security/main DEP-11 64x64 Icons [16.5 kB]
Get:71 http://us.archive.ubuntu.com/ubuntu focal-security/main DEP-11 64x64@2 Icons [29 B]
Get:72 http://us.archive.ubuntu.com/ubuntu focal-security/main DEP-11 128x128 Icons [40.2 kB]
Get:73 http://us.archive.ubuntu.com/ubuntu focal-security/main amd64 c-n-f Metadata [4,588 B]
Get:74 http://us.archive.ubuntu.com/ubuntu focal-security/restricted i386 Packages [6,356 B]
Get:75 http://us.archive.ubuntu.com/ubuntu focal-security/restricted amd64 Packages [34.3 kB]
Get:76 http://us.archive.ubuntu.com/ubuntu focal-security/restricted Translation-en [8,916 B]
Get:77 http://us.archive.ubuntu.com/ubuntu focal-security/restricted amd64 c-n-f Metadata [324 B]
Get:78 http://us.archive.ubuntu.com/ubuntu focal-security/universe i386 Packages [29.3 kB]
Get:79 http://us.archive.ubuntu.com/ubuntu focal-security/universe amd64 Packages [58.8 kB]
Get:80 http://us.archive.ubuntu.com/ubuntu focal-security/universe Translation-en [30.9 kB]
Get:81 http://us.archive.ubuntu.com/ubuntu focal-security/universe amd64 DEP-11 Metadata [52.4 kB]
Get:82 http://us.archive.ubuntu.com/ubuntu focal-security/universe DEP-11 48x48 Icons [15.4 kB]
Get:83 http://us.archive.ubuntu.com/ubuntu focal-security/universe DEP-11 64x64 Icons [22.5 kB]
Get:84 http://us.archive.ubuntu.com/ubuntu focal-security/universe DEP-11 64x64@2 Icons [29 B]
Get:85 http://us.archive.ubuntu.com/ubuntu focal-security/universe DEP-11 128x128 Icons [38.9 kB]
Get:86 http://us.archive.ubuntu.com/ubuntu focal-security/universe amd64 c-n-f Metadata [2,476 B]
Get:87 http://us.archive.ubuntu.com/ubuntu focal-security/multiverse amd64 Packages [1,172 B]
Get:88 http://us.archive.ubuntu.com/ubuntu focal-security/multiverse Translation-en [540 B]
Get:89 http://us.archive.ubuntu.com/ubuntu focal-security/multiverse amd64 c-n-f Metadata [116 B]
Get:90 http://us.archive.ubuntu.com/ubuntu focal-updates/multiverse Sources [4,620 B]
Get:91 http://us.archive.ubuntu.com/ubuntu focal-updates/main Sources [184 kB]
Get:92 http://us.archive.ubuntu.com/ubuntu focal-updates/universe Sources [59.6 kB]
Get:93 http://us.archive.ubuntu.com/ubuntu focal-updates/restricted Sources [4,188 B]
Get:94 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [359 kB]
Get:95 http://us.archive.ubuntu.com/ubuntu focal-updates/main i386 Packages [212 kB]
Get:96 http://us.archive.ubuntu.com/ubuntu focal-updates/main Translation-en [136 kB]
Get:97 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu focal/main Translation-en [3,180 B]
Get:98 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64 DEP-11 Metadata [209 kB]
Get:99 http://us.archive.ubuntu.com/ubuntu focal-updates/main DEP-11 48x48 Icons [48.9 kB]
Get:100 http://us.archive.ubuntu.com/ubuntu focal-updates/main DEP-11 64x64 Icons [79.3 kB]
Get:101 http://us.archive.ubuntu.com/ubuntu focal-updates/main DEP-11 64x64@2 Icons [29 B]
Get:102 http://us.archive.ubuntu.com/ubuntu focal-updates/main DEP-11 128x128 Icons [174 kB]
Get:103 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64 c-n-f Metadata [9,464 B]
Get:104 http://us.archive.ubuntu.com/ubuntu focal-updates/restricted i386 Packages [6,356 B]
Get:105 http://us.archive.ubuntu.com/ubuntu focal-updates/restricted amd64 Packages [34.5 kB]
Get:106 http://us.archive.ubuntu.com/ubuntu focal-updates/restricted Translation-en [8,968 B]
Get:107 http://us.archive.ubuntu.com/ubuntu focal-updates/restricted amd64 c-n-f Metadata [324 B]
Get:108 http://us.archive.ubuntu.com/ubuntu focal-updates/universe i386 Packages [91.3 kB]
Get:109 http://us.archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [166 kB]
Get:110 http://us.archive.ubuntu.com/ubuntu focal-updates/universe Translation-en [88.1 kB]
Get:111 http://us.archive.ubuntu.com/ubuntu focal-updates/universe amd64 DEP-11 Metadata [186 kB]
Get:112 http://us.archive.ubuntu.com/ubuntu focal-updates/universe DEP-11 48x48 Icons [93.4 kB]
Get:113 http://us.archive.ubuntu.com/ubuntu focal-updates/universe DEP-11 64x64 Icons [167 kB]
Get:114 http://us.archive.ubuntu.com/ubuntu focal-updates/universe DEP-11 64x64@2 Icons [29 B]
Get:115 http://us.archive.ubuntu.com/ubuntu focal-updates/universe DEP-11 128x128 Icons [404 kB]
Get:116 http://us.archive.ubuntu.com/ubuntu focal-updates/universe amd64 c-n-f Metadata [5,580 B]
Get:117 http://us.archive.ubuntu.com/ubuntu focal-updates/multiverse i386 Packages [3,312 B]
Get:118 http://us.archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 Packages [11.6 kB]
Get:119 http://us.archive.ubuntu.com/ubuntu focal-updates/multiverse Translation-en [3,892 B]
Get:120 http://us.archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 DEP-11 Metadata [2,468 B]
Get:121 http://us.archive.ubuntu.com/ubuntu focal-updates/multiverse DEP-11 48x48 Icons [29 B]
Get:122 http://us.archive.ubuntu.com/ubuntu focal-updates/multiverse DEP-11 64x64 Icons [2,638 B]
Get:123 http://us.archive.ubuntu.com/ubuntu focal-updates/multiverse DEP-11 64x64@2 Icons [29 B]
Get:124 http://us.archive.ubuntu.com/ubuntu focal-updates/multiverse DEP-11 128x128 Icons [29 B]
Get:125 http://ppa.launchpad.net/system76/pop/ubuntu focal/main Sources [26.1 kB]
Get:126 http://us.archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 c-n-f Metadata [480 B]
Get:127 http://us.archive.ubuntu.com/ubuntu focal-backports/universe Sources [1,700 B]
Get:128 http://us.archive.ubuntu.com/ubuntu focal-backports/main amd64 c-n-f Metadata [112 B]
Get:129 http://us.archive.ubuntu.com/ubuntu focal-backports/restricted amd64 c-n-f Metadata [116 B]
Get:130 http://us.archive.ubuntu.com/ubuntu focal-backports/universe i386 Packages [2,256 B]
Get:131 http://us.archive.ubuntu.com/ubuntu focal-backports/universe amd64 Packages [3,088 B]
Get:132 http://us.archive.ubuntu.com/ubuntu focal-backports/universe Translation-en [1,448 B]
Get:133 http://us.archive.ubuntu.com/ubuntu focal-backports/universe amd64 DEP-11 Metadata [1,768 B]
Get:134 http://us.archive.ubuntu.com/ubuntu focal-backports/universe DEP-11 48x48 Icons [2,809 B]
Get:135 http://us.archive.ubuntu.com/ubuntu focal-backports/universe DEP-11 64x64 Icons [3,944 B]
Get:136 http://us.archive.ubuntu.com/ubuntu focal-backports/universe DEP-11 64x64@2 Icons [29 B]
Get:137 http://us.archive.ubuntu.com/ubuntu focal-backports/universe DEP-11 128x128 Icons [6,807 B]
Get:138 http://us.archive.ubuntu.com/ubuntu focal-backports/universe amd64 c-n-f Metadata [224 B]
Get:139 http://us.archive.ubuntu.com/ubuntu focal-backports/multiverse amd64 c-n-f Metadata [116 B]
Get:140 http://ppa.launchpad.net/system76/pop/ubuntu focal/main amd64 Packages [58.0 kB]
Get:141 http://ppa.launchpad.net/system76/pop/ubuntu focal/main i386 Packages [28.2 kB]
Get:142 http://ppa.launchpad.net/system76/pop/ubuntu focal/main Translation-en [21.2 kB]
Get:143 http://ppa.launchpad.net/tatokis/ckb-next/ubuntu focal/main amd64 Packages [616 B]
Get:144 http://ppa.launchpad.net/tatokis/ckb-next/ubuntu focal/main Translation-en [228 B]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/mdeguzis/libregeek/ubuntu focal 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.
p.s. I am new to Linux. Three days new.
