JAVA_HOME environment references a directory

First I imported the play-games-plugin-for-unity-master and I successfully completed the android configuration, but then this error appeared.

The path on the image doesn't even exist, since unity is installed on the C: drive with version 2019.2.0f1 and not 2019.3.0a2.

The JAVA_HOME is set to the following, under system variables.

Does anyone have an idea how to change JAVA_HOME to the correct path so it works in Unity? Thanks in advance!!