500 when using PurlDB collect endpoint on GitHub PURL

With http://127.0.0.1:8001/api/collect/?purl=pkg:github/llvm/llvm-project@10.0.0&addon_pipelines=collect_strings_gettext

```
ERROR Internal Server Error: /api/collect/
Traceback (most recent call last):
File "/tmp/purldb/venv/lib/python3.10/site-packages/django/core/handlers/exception.py", line 55, in inner
response = get_response(request)
File "/tmp/purldb/venv/lib/python3.10/site-packages/django/core/handlers/base.py", line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/pombreda/.pyenv/versions/3.10.13/lib/python3.10/contextlib.py", line 79, in inner
return func(*args, **kwds)
File "/tmp/purldb/venv/lib/python3.10/site-packages/django/views/decorators/csrf.py", line 65, in _view_wrapper
return view_func(request, *args, **kwargs)
File "/tmp/purldb/venv/lib/python3.10/site-packages/rest_framework/viewsets.py", line 124, in view
return self.dispatch(request, *args, **kwargs)
File "/tmp/purldb/venv/lib/python3.10/site-packages/rest_framework/views.py", line 509, in dispatch
response = self.handle_exception(exc)
File "/tmp/purldb/venv/lib/python3.10/site-packages/rest_framework/views.py", line 469, in handle_exception
self.raise_uncaught_exception(exc)
File "/tmp/purldb/venv/lib/python3.10/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
raise exc
File "/tmp/purldb/venv/lib/python3.10/site-packages/rest_framework/views.py", line 506, in dispatch
response = handler(request, *args, **kwargs)
File "/tmp/purldb/packagedb/api.py", line 817, in list
errors = priority_router.process(purl, **kwargs)
File "/tmp/purldb/minecode/route.py", line 164, in process
return endpoint(string, *args, **kwargs)
File "/tmp/purldb/minecode/visitors/github.py", line 207, in process_request_dir_listed
error_msg = map_fetchcode_supported_package(package_url, pipelines)
File "/tmp/purldb/minecode/visitors/generic.py", line 108, in map_fetchcode_supported_package
packages = [p for p in info(str(package_url)) or []]
File "/tmp/purldb/minecode/visitors/generic.py", line 108, in
packages = [p for p in info(str(package_url)) or []]
File "/tmp/purldb/venv/lib/python3.10/site-packages/fetchcode/package_util.py", line 80, in get_package_info
yield from get_github_packages(
File "/tmp/purldb/venv/lib/python3.10/site-packages/fetchcode/package_util.py", line 92, in get_github_packages
for package in _get_github_packages(
File "/tmp/purldb/venv/lib/python3.10/site-packages/fetchcode/package_util.py", line 114, in _get_github_packages
for tag, date in utils.fetch_github_tags_gql(purl):
File "/tmp/purldb/venv/lib/python3.10/site-packages/fetchcode/utils.py", line 27, in fetch_github_tags_gql
for node in fetch_github_tag_nodes(purl):
File "/tmp/purldb/venv/lib/python3.10/site-packages/fetchcode/utils.py", line 100, in fetch_github_tag_nodes
response = github_response(graphql_query)
File "/tmp/purldb/venv/lib/python3.10/site-packages/fetchcode/utils.py", line 139, in github_response
raise GitHubTokenError(msg)
fetchcode.utils.GitHubTokenError: GitHub API Token Not Set
Set your GitHub token in the GH_TOKEN environment variable.
ERROR "GET /api/collect/?purl=pkg:github/llvm/llvm-project@10.0.0&addon_pipelines=collect_strings_gettext HTTP/1.1" 500 145
```

but as an API I just see a 500!
I should get some help instead