Application Error

This is a sad time. An error occured.

Traceback (most recent call last):
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flask/app.py", line 2190, in wsgi_app
    response = self.full_dispatch_request()
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flask/app.py", line 1486, in full_dispatch_request
    rv = self.handle_user_exception(e)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flask/app.py", line 1484, in full_dispatch_request
    rv = self.dispatch_request()
         ^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flask/app.py", line 1469, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/py/flask_view_tree/__init__.py", line 131, in wrapper
    return f(**flask.g.view_node.kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/py/flask_wiki/__init__.py", line 98, in wiki_article
    return render_template('wiki.article', namespace='wiki', title=title, revision=None, wiki_name=wiki_name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/py/flask_wiki/__init__.py", line 33, in render_template
    return jinja2.Markup(flask.render_template(template_path, **kwargs))
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flask/templating.py", line 151, in render_template
    return _render(app, template, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flask/templating.py", line 132, in _render
    rv = template.render(context)
         ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/jinja2/environment.py", line 1090, in render
    self.environment.handle_exception()
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/jinja2/environment.py", line 832, in handle_exception
    reraise(*rewrite_traceback_stack(source=source))
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/jinja2/_compat.py", line 28, in reraise
    raise value.with_traceback(tb)
  File "/opt/git/github.com/wurstmineberg/wurstmineberg.de/master/wurstmineberg_web/templates/wiki/article.html.j2", line 1, in <module>
    {% extends 'base.html.j2' %}
    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/git/github.com/wurstmineberg/wurstmineberg.de/master/wurstmineberg_web/templates/base.html.j2", line 37, in <module>
    {%- if g.view_node is defined and ((g.view_node.parent.is_index and g.view_node.view_func_node.name == page) or (g.view_node.parents | length > 1 and g.view_node.parents[-2].view_func_node.name == page)) %}
    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flask_bootstrap/templates/bootstrap/base.html", line 1, in <module>
    {% block doc -%}
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flask_bootstrap/templates/bootstrap/base.html", line 4, in <module>
    {%- block html %}
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flask_bootstrap/templates/bootstrap/base.html", line 20, in <module>
    {% block body -%}
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flask_bootstrap/templates/bootstrap/base.html", line 23, in <module>
    {% block content -%}
  File "/opt/git/github.com/wurstmineberg/wurstmineberg.de/master/wurstmineberg_web/templates/base.html.j2", line 99, in <module>
    {% block page_content %}
  File "/opt/git/github.com/wurstmineberg/wurstmineberg.de/master/wurstmineberg_web/templates/wiki/article.html.j2", line 17, in <module>
    {{ g.wiki.source(namespace, title, revision) | markdown }}
    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/flaskext/markdown.py", line 69, in __call__
    return Markup(self._instance.convert(stream))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/markdown/core.py", line 361, in convert
    newRoot = treeprocessor.run(root)
              ^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/markdown/treeprocessors.py", line 385, in run
    self.__handleInline(text), child
    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/markdown/treeprocessors.py", line 136, in __handleInline
    data, matched, startIndex = self.__applyPattern(
                                ^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/markdown/treeprocessors.py", line 286, in __applyPattern
    node, start, end = pattern.handleMatch(match, data)
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/py/flask_wiki/__init__.py", line 45, in handleMatch
    user = user_class_constructor(m.group(1))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/git/github.com/wurstmineberg/wurstmineberg.de/master/wurstmineberg_web/models.py", line 92, in from_snowflake_or_wmbid
    return cls.from_snowflake(int(wmbid_or_snowflake))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/git/github.com/wurstmineberg/wurstmineberg.de/master/wurstmineberg_web/models.py", line 79, in from_snowflake
    return cls.query.filter_by(snowflake=snowflake).one()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/sqlalchemy/orm/query.py", line 2870, in one
    return self._iter().one()
           ^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/sqlalchemy/engine/result.py", line 1522, in one
    return self._only_one_row(
           ^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/uwsgi/lib/python3.11/site-packages/sqlalchemy/engine/result.py", line 562, in _only_one_row
    raise exc.NoResultFound(
sqlalchemy.exc.NoResultFound: No row was found when one was required

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