The following error occurred in the graphql module.

The website encountered an unexpected error. Please try again later. TypeError: array_keys(): Argument #1 ($array) must be of type array, null given in array_keys() (line 40 of /bitnami/drupal/modules/contrib/graphql/graphql.install).

I fixed the source code referring to the following article.

https://www.drupal.org/project/google_tag/issues/3319621

Specifically, by rewriting as follows, the error was resolved.

$ne$gnoetgioattiiaotnio=n$=la$nlgaunaggueaTgyepTeysp-e>sg-e>tg(e'tn(e'gnoetgioattiiaotni'o)n'?)?;[];

This should be fixed in the latest version, but we hope this is helpful for anyone encountering a similar error.