TypeError: Null check operator used on a null value

[sentry-io]

Sentry Issue: GLUT-ASSISTANT-N-39

TypeError: Null check operator used on a null value
  File "framework.dart", line 958, in State.context
    return _element!;
  File "queryScore.dart", line 60, in _QueryBodyState.preprocess
    ScaffoldMessenger.of(context).removeCurrentSnackBar();
  File "queryScore.dart", line 55, in _QueryBodyState.preprocess
    void preprocess(value) {
  File "zone.dart", line 1407, in _rootRunUnary
  File "zone.dart", line 1405, in _rootRunUnary
...
(2 additional frame(s) were not displayed)

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