apt update fails: Failed to fetch https://notion.davidbailey.codes/debs/en 404 Not Found [IP: 34.206.8.7 443]

[Deleetdk]

apt update fails:

Ign:35 https://davidbailey00.fury.land/apt  Release                            
Ign:38 https://notion.davidbailey.codes/debs  Packages                         
Ign:38 https://davidbailey00.fury.land/apt  Packages                           
Ign:39 https://notion.davidbailey.codes/debs  Translation-en                   
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Ign:40 https://notion.davidbailey.codes/debs  Translation-en_US                
Ign:40 https://davidbailey00.fury.land/apt  Translation-en_US             
Get:38 https://davidbailey00.fury.land/apt  Packages [1.530 B]            
Get:41 http://security.ubuntu.com/ubuntu bionic-security/main amd64 DEP-11 Metadata [51,4 kB]
Ign:39 https://notion.davidbailey.codes/debs  Translation-en                   
Ign:39 https://davidbailey00.fury.land/apt  Translation-en                     
Get:42 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 DEP-11 Metadata [58,0 kB]
Get:43 http://security.ubuntu.com/ubuntu bionic-security/multiverse amd64 DEP-11 Metadata [2.464 B]
Ign:40 https://notion.davidbailey.codes/debs  Translation-en_US                
Ign:40 https://davidbailey00.fury.land/apt  Translation-en_US                  
Ign:39 https://notion.davidbailey.codes/debs  Translation-en                    
Ign:39 https://davidbailey00.fury.land/apt  Translation-en                
Hit:25 https://packagecloud.io/slacktechnologies/slack/debian jessie InRelease    
Ign:40 https://notion.davidbailey.codes/debs  Translation-en_US           
Ign:40 https://davidbailey00.fury.land/apt  Translation-en_US
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Ign:39 https://notion.davidbailey.codes/debs  Translation-en
Ign:39 https://davidbailey00.fury.land/apt  Translation-en
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Ign:40 https://notion.davidbailey.codes/debs  Translation-en_US
Ign:40 https://davidbailey00.fury.land/apt  Translation-en_US
Fetched 972 kB in 3s (301 kB/s)
Reading package lists... Done
E: Failed to fetch https://notion.davidbailey.codes/debs/en  404  Not Found [IP: 34.206.8.7 443]
E: Failed to fetch https://notion.davidbailey.codes/debs/en_US  404  Not Found [IP: 34.206.8.7 443]
E: Some index files failed to download. They have been ignored, or old ones used instead.

But install still works when run again:

user@computer:~$ apt install notion-desktop 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  boinc-client golang-1.10-go golang-1.10-src golang-src libboinc7 libgsoap-2.8.60 libllvm10:i386 libllvm11 libllvm11:i386
  libnvidia-cfg1-440 libnvidia-cfg1-450 libnvidia-common-435 libnvidia-common-440 libnvidia-common-450 libnvidia-common-455
  libnvidia-compute-440 libnvidia-compute-450 libnvidia-decode-440 libnvidia-decode-450 libnvidia-encode-450
  libnvidia-extra-450 libnvidia-fbc1-450 libnvidia-gl-450 libnvidia-gl-450:i386 libnvidia-ifr1-440 libnvidia-ifr1-450
  libpciaccess-dev libstd-rust-1.47 libvncserver1 libxdamage1:i386 linux-headers-4.15.0-106
  linux-headers-4.15.0-106-generic linux-headers-4.15.0-115 linux-headers-4.15.0-115-generic linux-headers-4.15.0-122
  linux-headers-4.15.0-122-generic linux-headers-4.15.0-124 linux-headers-4.15.0-124-generic linux-headers-4.15.0-130
  linux-headers-4.15.0-130-generic linux-headers-4.15.0-135 linux-headers-4.15.0-135-generic linux-headers-4.15.0-136
  linux-headers-4.15.0-136-generic linux-headers-4.15.0-140 linux-headers-4.15.0-140-generic linux-headers-4.15.0-143
  linux-headers-4.15.0-143-generic linux-headers-5.4.0-45-generic linux-headers-5.4.0-52-generic
  linux-headers-5.4.0-54-generic linux-headers-5.4.0-60-generic linux-headers-5.4.0-65-generic
  linux-headers-5.4.0-66-generic linux-headers-5.4.0-70-generic linux-headers-5.4.0-73-generic
  linux-hwe-5.4-headers-5.4.0-45 linux-hwe-5.4-headers-5.4.0-52 linux-hwe-5.4-headers-5.4.0-54
  linux-hwe-5.4-headers-5.4.0-60 linux-hwe-5.4-headers-5.4.0-65 linux-hwe-5.4-headers-5.4.0-66
  linux-hwe-5.4-headers-5.4.0-70 linux-hwe-5.4-headers-5.4.0-73 nvidia-compute-utils-450 nvidia-dkms-450
  nvidia-kernel-common-450 nvidia-kernel-source-450 nvidia-utils-450 python-fasteners python-monotonic python-pexpect
  python-ptyprocess xserver-xorg-video-nvidia-450
Use 'sudo apt autoremove' to remove them.
Suggested packages:
  gir1.2-gnomekeyring-1.0 libgnome-keyring0
The following NEW packages will be installed:
  notion-desktop
0 upgraded, 1 newly installed, 0 to remove and 2 not upgraded.
Need to get 97,7 MB of archives.
After this operation, 407 MB of additional disk space will be used.
Get:1 https://davidbailey00.fury.land/apt  notion-desktop 2.0.11-8 [97,7 MB]