Traceback on running ./run.sh up -d

I was pleased to find this project and hoped it would solve my running Matrix on my DS218+. Unfortunately, after changing the variables in config (domain, URLs, paths) and running sudo ./run.sh prepare followed by sudo ./run.sh up -d I encounter many errors:

➜  docker-matrix-bootstrap git:(main) ✗ sudo ./run.sh prepare
[ OK ] re-using host path for volume: /volume1/docker/matrix/synapse/data
[ OK ] re-using host path for volume: /volume1/docker/matrix/db/data
[ OK ] re-using host path for volume: /volume1/docker/matrix/element/config
[ OK ] re-using existing homeserver.yaml (delete "/volume1/docker/matrix/synapse/data/homeserver.yaml" and "/volume1/docker/matrix/synapse/data/homeserver.yaml.bak" if you want a fresh start)
[ OK ] rendering synapse homeserver.yaml
[ OK ] rendering element config.json
[ OK ] fixing permissions on /volume1/docker/matrix/synapse/data
[ OK ] fixing permissions on /volume1/docker/matrix/db/data
[ OK ] fixing permissions on /volume1/docker/matrix/element/config
[ OK ] synapse: matching certificate found for matrix.my.domain, rending reverse proxy config
[ OK ] element: matching certificate found for element.my.domain, rending reverse proxy config
[ OK ] reloading nginx config to activate reverse proxy configuration

➜  docker-matrix-bootstrap git:(main) ✗ sudo ./run.sh up -d
[ OK ] rendering docker-compose.yml and passing it to docker-compose
Traceback (most recent call last):
  File "docker-compose", line 3, in <module>
  File "compose/cli/main.py", line 80, in main
  File "compose/cli/main.py", line 189, in perform_command
  File "compose/cli/command.py", line 70, in project_from_options
  File "compose/cli/command.py", line 144, in get_project
  File "compose/config/config.py", line 300, in find
  File "yaml/__init__.py", line 162, in safe_load
  File "yaml/__init__.py", line 114, in load
  File "yaml/constructor.py", line 49, in get_single_data
  File "yaml/composer.py", line 36, in get_single_node
  File "yaml/composer.py", line 55, in compose_document
  File "yaml/composer.py", line 84, in compose_node
  File "yaml/composer.py", line 133, in compose_mapping_node
  File "yaml/composer.py", line 84, in compose_node
  File "yaml/composer.py", line 133, in compose_mapping_node
  File "yaml/composer.py", line 84, in compose_node
  File "yaml/composer.py", line 133, in compose_mapping_node
  File "yaml/composer.py", line 84, in compose_node
  File "yaml/composer.py", line 127, in compose_mapping_node
  File "yaml/parser.py", line 98, in check_event
  File "yaml/parser.py", line 439, in parse_block_mapping_key
yaml.parser.ParserError: while parsing a block mapping
  in "<stdin>", line 47, column 7
 expected <block end>, but found '<scalar>'
  in "<stdin>", line 49, column 45
[10139] Failed to execute script docker-compose

Any ideas?

DSM version 6.2.4-25556 Docker version 20.10.3, build b35e731 docker-compose version 1.28.5, build 1bbbad71 ZSH version 5.8 Bash version 4.3.48

meyayl / docker-matrix-bootstrap

Traceback on running ./run.sh up -d #1