alueError: Bucket names must start and end with a number or letter.

[Kehrenkamp]

Hello,

can you help me to fix this problem?
`python3 app.py

• Serving Flask app 'app' (lazy loading)
• Environment: production
  WARNING: This is a development server. Do not use it in a production deployment.
  Use a production WSGI server instead.
• Debug mode: on
• Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
• Restarting with stat
• Debugger is active!
• Debugger PIN: 106-248-837
  127.0.0.1 - - [08/Sep/2021 22:27:29] "GET / HTTP/1.1" 404 -
  127.0.0.1 - - [08/Sep/2021 22:27:33] "GET / HTTP/1.1" 404 -
  127.0.0.1 - - [08/Sep/2021 22:27:35] "GET / HTTP/1.1" 404 -
  127.0.0.1 - - [08/Sep/2021 22:27:35] "GET /api/creature/2 HTTP/1.1" 500 -
  Traceback (most recent call last):
  File "/Users/Kehrenkamp/Library/Python/3.8/lib/python/site-packages/flask/app.py", line 2088, in call
  return self.wsgi_app(environ, start_response)
  File "/Users/Kehrenkamp/Library/Python/3.8/lib/python/site-packages/flask/app.py", line 2073, in wsgi_app
  response = self.handle_exception(e)
  File "/Users/Kehrenkamp/Library/Python/3.8/lib/python/site-packages/flask/app.py", line 2070, in wsgi_app
  response = self.full_dispatch_request()
  File "/Users/Kehrenkamp/Library/Python/3.8/lib/python/site-packages/flask/app.py", line 1515, in full_dispatch_request
  rv = self.handle_user_exception(e)
  File "/Users/Kehrenkamp/Library/Python/3.8/lib/python/site-packages/flask/app.py", line 1513, in full_dispatch_request
  rv = self.dispatch_request()
  File "/Users/Kehrenkamp/Library/Python/3.8/lib/python/site-packages/flask/app.py", line 1499, in dispatch_request
  return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
  File "/Users/Kehrenkamp/Desktop/metadata-api-python-master/app.py", line 45, in creature
  image_url = _compose_image(['images/bases/base-%s.png' % base,
  File "/Users/Kehrenkamp/Desktop/metadata-api-python-master/app.py", line 145, in _compose_image
  blob = _get_bucket().blob(f"{path}/{token_id}.png")
  File "/Users/Kehrenkamp/Desktop/metadata-api-python-master/app.py", line 155, in _get_bucket
  return client.get_bucket(GOOGLE_STORAGE_BUCKET)
  File "/Users/Kehrenkamp/Library/Python/3.8/lib/python/site-packages/google/cloud/storage/client.py", line 762, in get_bucket
  bucket = self._bucket_arg_to_bucket(bucket_or_name)
  File "/Users/Kehrenkamp/Library/Python/3.8/lib/python/site-packages/google/cloud/storage/client.py", line 241, in _bucket_arg_to_bucket
  bucket = Bucket(self, name=bucket_or_name)
  File "/Users/Kehrenkamp/Library/Python/3.8/lib/python/site-packages/google/cloud/storage/bucket.py", line 611, in init
  name = _validate_name(name)
  File "/Users/Kehrenkamp/Library/Python/3.8/lib/python/site-packages/google/cloud/storage/_helpers.py", line 81, in _validate_name
  raise ValueError("Bucket names must start and end with a number or letter.")
  ValueError: Bucket names must start and end with a number or letter.`