Werkzeug Internal Server Error

traceback.txt

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1997, in __call__
    return self.wsgi_app(environ, start_response)
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1985, in wsgi_app
    response = self.handle_exception(e)
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1540, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1982, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1614, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1517, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1612, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1598, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/opt/app/am_internal_services/app.py", line 1083, in cronjob_view
    document_types_txt)
  File "/opt/app/am_internal_services/periodic_jobs.py", line 87, in create_periodic_job
    db.session.commit()
  File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/scoping.py", line 157, in do
    return getattr(self.registry(), name)(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 906, in commit
    self.transaction.commit()
  File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 465, in commit
    t[1].commit()
  File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1632, in commit
    self._do_commit()
  File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1663, in _do_commit
    self.connection._commit_impl()
  File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 723, in _commit_impl
    self._handle_dbapi_exception(e, None, None, None, None)
  File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1402, in _handle_dbapi_exception
    exc_info
  File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/compat.py", line 203, in raise_from_cause
    reraise(type(exception), exception, tb=exc_tb, cause=cause)
  File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 721, in _commit_impl
    self.engine.dialect.do_commit(self.connection)
  File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/dialects/mysql/base.py", line 1586, in do_commit
    dbapi_connection.commit()
OperationalError: (_mysql_exceptions.OperationalError) (2013, 'Lost connection to MySQL server during query')