During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/gunicorn/workers/sync.py", line 134, in handle
self.handle_request(listener, req, client, addr)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/gunicorn/workers/sync.py", line 190, in handle_request
util.reraise(*sys.exc_info())
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/gunicorn/util.py", line 625, in reraise
raise value
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/gunicorn/workers/sync.py", line 175, in handle_request
respiter = self.wsgi(environ, resp.start_response)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/flask/app.py", line 2463, in __call__
return self.wsgi_app(environ, start_response)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/flask/app.py", line 2449, in wsgi_app
response = self.handle_exception(e)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/flask/app.py", line 1878, in handle_exception
server_error = handler(server_error)
File "/root/bluelog/bluelog/__init__.py", line 130, in internal_server_error
return render_template('errors/500.html'), 500
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/flask/templating.py", line 140, in render_template
ctx.app,
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/flask/templating.py", line 120, in _render
rv = template.render(context)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/jinja2/asyncsupport.py", line 76, in render
return original_render(self, *args, **kwargs)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/jinja2/environment.py", line 1008, in render
return self.environment.handle_exception(exc_info, True)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/jinja2/environment.py", line 780, in handle_exception
reraise(exc_type, exc_value, tb)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/jinja2/_compat.py", line 37, in reraise
raise value.with_traceback(tb)
File "/root/bluelog/bluelog/templates/errors/500.html", line 1, in top-level template code
{% extends 'base.html' %}
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/jinja2/environment.py", line 1005, in render
return concat(self.root_render_func(self.new_context(vars)))
File "/root/bluelog/bluelog/templates/errors/500.html", line 14, in root
{% include '_sidebar.html' %}
File "/root/bluelog/bluelog/templates/base.html", line 12, in root
type="text/css">
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/jinja2/environment.py", line 830, in get_template
return self._load_template(name, self.make_globals(globals))
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/jinja2/environment.py", line 804, in _load_template
template = self.loader.load(self, name, globals)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/jinja2/loaders.py", line 113, in load
source, filename, uptodate = self.get_source(environment, name)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/flask/templating.py", line 60, in get_source
return self._get_source_fast(environment, template)
File "/root/.pyenv/versions/3.7.0/envs/env-37/lib/python3.7/site-packages/flask/templating.py", line 89, in _get_source_fast
raise TemplateNotFound(template)
**jinja2.exceptions.TemplateNotFound: bootstrap/nav.html**