Internal Server Error

The server has either erred or is incapable of performing the requested operation.

Traceback (most recent call last):
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1535, in __call__
    rv = self.handle_exception(request, response, e)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1529, in __call__
    rv = self.router.dispatch(request, response)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1278, in default_dispatcher
    return route.handler_adapter(request, response)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1102, in __call__
    return handler.dispatch()
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 572, in dispatch
    return self.handle_exception(e, self.app.debug)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 570, in dispatch
    return method(*args, **kwargs)
  File "/base/data/home/apps/s~kmltools-hrd/2.439997277951168947/main.py", line 884, in get
    hostedkml = db.run_in_transaction(GetHostedKml, name)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/1/google/appengine/api/datastore.py", line 2517, in RunInTransaction
    return RunInTransactionOptions(None, function, *args, **kwargs)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/1/google/appengine/api/datastore.py", line 2641, in RunInTransactionOptions
    function, *args, **kwargs)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/1/google/appengine/api/datastore.py", line 2716, in _RunInTransactionInternal
    ok, result = _DoOneTry(function, args, kwargs)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/1/google/appengine/api/datastore.py", line 2754, in _DoOneTry
    result = function(*args, **kwargs)
  File "/base/data/home/apps/s~kmltools-hrd/2.439997277951168947/main.py", line 869, in GetHostedKml
    hostedkml = HostedKml.get_by_key_name(name)
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/1/google/appengine/ext/db/__init__.py", line 1276, in get_by_key_name
    for name in key_names]
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/1/google/appengine/api/datastore_types.py", line 527, in from_path
    ValidateString(id_or_name, 'name')
  File "/base/alloc/tmpfs/dynamic_runtimes/python27g/abc1bb91493545df/python27/python27_lib/versions/1/google/appengine/api/datastore_types.py", line 188, in ValidateString
    if len(value.encode('utf-8')) > max_len:
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe5 in position 20: ordinal not in range(128)