Error: `parentNode` property of given node is `undefined`

Just for some hours now, our gulp build process stopped working due to an error in `gulp-javascript-obfuscator`:
```
C:\...\node_modules\gulp-javascript-obfuscator\
node_modules\javascript-obfuscator\dist\webpack:\JavaScriptObfuscator\src\node\N
odeUtils.ts:237
throw new ReferenceError('`parentNode`property of given node is `un
defined`');
^
ReferenceError: `parentNode` property of given node is `undefined`
```
(Note that I have "..." the path to the actual folder.)

After quickly digging into the problem, I have found that `javascript-obfuscator` has release v0.17.0 just today (some hours) ago. If I manually downgrade inside the `gulp-javascript-obfuscator` the `javascript-obfuscator` to `0.16.0` (instead of `latest`) it works again. I know this cannot be the actual solution, but it could be a starting point however.

Any suggestions?
Thanks in advance.
Please, if more information is required from my side, tell me.

Comienza reproduciendo la compilación de gulp con javascript-obfuscator 0.17.0 y compárala con la configuración funcional reportada con 0.16.0. Inspecciona el comportamiento de la dependencia relacionado con el error indicado de nodeUtils.ts:237; se considera completado cuando el plugin se compila correctamente con la versión afectada de la dependencia o se documenta una restricción de versión compatible.

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