こんにちは：
過去数ヶ月間、Discourse に問題なく運用していましたが、ホストをリセットしたところ、Discourse が再び起動しなくなりました。
/var/discourse# ./launcher rebuild app
Ensuring launcher is up to date
Fetching origin
Launcher is up-to-date
cat: 80:80: No such file or directory
cat: 443:443: No such file or directory
cd /pups && git pull && /pups/bin/pups --stdin
/usr/bin/docker: invalid reference format: repository name must be lowercase.
See '/usr/bin/docker run --help'.
cat: cids/app_bootstrap.cid: No such file or directory
"docker rm" requires at least 1 argument.
See 'docker rm --help'.
Usage: docker rm [OPTIONS] CONTAINER [CONTAINER...]
Remove one or more containers
rm: cannot remove 'cids/app_bootstrap.cid': No such file or directory
** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one.
./discourse-doctor may help diagnose the problem.
“run” と “bootstrap” コマンドは同じ動作をします 
Doctor の出力：
./discourse-doctor
DISCOURSE DOCTOR Sun Feb 16 11:59:15 CET 2020
OS: Linux XXXXXXXXXXXX 3.16.0-7-amd64 #1 SMP Debian 3.16.59-1 (2018-10-03) x86_64 GNU/Linux
Found containers/app.yml
==================== YML SETTINGS ====================
awk: not an option: --field-separator=:
DISCOURSE_HOSTNAME=
awk: not an option: --field-separator=:
SMTP_ADDRESS=
awk: not an option: --field-separator=:
DEVELOPER_EMAILS=
awk: not an option: --field-separator=:
SMTP_PASSWORD=
awk: not an option: --field-separator=:
SMTP_PORT=
awk: not an option: --field-separator=:
SMTP_USER_NAME=
awk: not an option: --field-separator=:
LETSENCRYPT_ACCOUNT_EMAIL=
==================== DOCKER INFO ====================
DOCKER VERSION: Docker version 18.06.3-ce, build d7080c1
DOCKER PROCESSES (docker ps -a)
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
==================== SERIOUS PROBLEM!!!! ====================
app not running!
Attempting to rebuild
==================== REBUILD LOG ====================
Ensuring launcher is up to date
Fetching origin
Launcher is up-to-date
cat: 80:80: No such file or directory
cat: 443:443: No such file or directory
cd /pups && git pull && /pups/bin/pups --stdin
/usr/bin/docker: invalid reference format: repository name must be lowercase.
See '/usr/bin/docker run --help'.
cat: cids/app_bootstrap.cid: No such file or directory
"docker rm" requires at least 1 argument.
See 'docker rm --help'.
Usage: docker rm [OPTIONS] CONTAINER [CONTAINER...]
Remove one or more containers
rm: cannot remove 'cids/app_bootstrap.cid': No such file or directory
** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one.
./discourse-doctor may help diagnose the problem.
==================== END REBUILD LOG ====================
Failed to rebuild app.
Checking your domain name . . .
Connection to 443 succeeded.
You should probably remove any non-standard plugins and rebuild.
Attempting to restart existing container. . .
cat: 80:80: No such file or directory
cat: 443:443: No such file or directory
+ /usr/bin/docker run --shm-size=512m -d --restart=always '#<NoMethodError: undefined method `[]'\'' for false:FalseClass>' '#<NoMethodError: undefined method `[]'\'' for false:FalseClass>' -e LANG=en_US.UTF-8 -e RAILS_ENV=production -e UNICORN_WORKERS=4 -e UNICORN_SIDEKIQS=1 -e RUBY_GLOBAL_METHOD_CACHE_SIZE=131072 -e RUBY_GC_HEAP_GROWTH_MAX_SLOTS=40000 -e RUBY_GC_HEAP_INIT_SLOTS=400000 -e RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR=1.5 -e DISCOURSE_DB_SOCKET=/var/run/postgresql -e DISCOURSE_DB_HOST= -e DISCOURSE_DB_PORT= -e LETSENCRYPT_DIR=/shared/letsencrypt -e DISCOURSE_HOSTNAME=XXXXXXXXXXXX -e DISCOURSE_DEVELOPER_EMAILS=XXXXXXXXXXXX -e DISCOURSE_SMTP_ADDRESS=XXXXXXXXXXXX -e DISCOURSE_SMTP_PORT=587 -e DISCOURSE_SMTP_USER_NAME=XXXXXXXXXXXX -e DISCOURSE_SMTP_PASSWORD=XXXXXXXXXXXX -e DISCOURSE_SMTP_ENABLE_START_TLS=false -e LETSENCRYPT_ACCOUNT_EMAIL=XXXXXXXXXXXX '#<NoMethodError: undefined method `[]'\'' for false:FalseClass>' '#<NoMethodError: undefined method `[]'\'' for false:FalseClass>' -h vps659319-app -e DOCKER_HOST_IP=172.17.0.1 --name app -t '#<NoMethodError: undefined method `[]'\'' for false:FalseClass>' '#<NoMethodError: undefined method `[]'\'' for false:FalseClass>' -v /var/discourse/shared/standalone:/shared -v /var/discourse/shared/standalone/log/var-log:/var/log --mac-address 02:62:5b:d4:b7:80 local_discourse/app /sbin/boot
/usr/bin/docker: invalid reference format: repository name must be lowercase.
See '/usr/bin/docker run --help'.
Failed to restart the container.
==================== PLUGINS ====================
- git clone https://github.com/discourse/docker_manager.git
- git clone https://github.com/discourse/discourse-plugin-linkedin-auth.git
- git clone https://github.com/discourse/discourse-oauth2-basic.git
- git clone https://github.com/discourse/discourse-solved.git
- git clone https://github.com/discourse/discourse-voting.git
- git clone https://github.com/discourse/discourse-assign.git
- git clone https://github.com/discourse/discourse-staff-notes.git
- git clone https://github.com/discourse/discourse-checklist.git
- git clone https://github.com/discourse/discourse-social-share.git
- git clone https://github.com/rcfox/Discourse-LinkedIn-Sharing-Button.git
- git clone https://github.com/BeXcellent/discourse-allowiframe.git
WARNING:
You have what appear to be non-official plugins.
If you are having trouble, you should disable them and try rebuilding again.
See https://github.com/discourse/discourse/blob/master/lib/plugin/metadata.rb for the official list.
========================================
Discourse version at : NOT FOUND
Discourse version at localhost: NOT FOUND
==================== MEMORY INFORMATION ====================
RAM (MB): 2009
total used free shared buffers cached
Mem: 1962 1819 142 45 86 586
-/+ buffers/cache: 1146 815
Swap: 2047 190 1857
==================== DISK SPACE CHECK ====================
---------- OS Disk Space ----------
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 20G 9.1G 9.7G 49% /
==================== DISK INFORMATION ====================
Disk /dev/sdb: 50 GiB, 53687091200 bytes, 104857600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 20 GiB, 21474836480 bytes, 41943040 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x7f0953e7
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 41941883 41939836 20G 83 Linux
==================== END DISK INFORMATION ====================
==================== MAIL TEST ====================
For a robust test, get an address from http://www.mail-tester.com/
Or just send a test message to yourself.
Email address for mail test? ('n' to skip) []: XXXXXXXXXXXX
Sending mail to XXXXXXXXXXXX. . .
Error: No such container: app
Replacing: SMTP_PASSWORD
Replacing: LETSENCRYPT_ACCOUNT_EMAIL
Replacing: DEVELOPER_EMAILS
Replacing: DISCOURSE_DB_PASSWORD
Replacing: Sending mail to
==================== DONE! ====================
You can examine the output of this script with
LESS=-Ri less /tmp/discourse-debug.txt
BUT FIRST, make sure that you know the first three commands below!!!
Commands to know when viewing the file with the above command (called 'less'):
q -- quit
/error<ENTER> -- search for the word 'error'
n -- search for the next occurrence
g -- go to the beginning of the file
f -- go forward a page
b -- go back a page
G -- go to the end of the file