Rossana Olaizola 

I moved your post to the AppStore forum since the message refers specifically to this plugin:

https://appstore.rws.com/Plugin/95

The errors indicate issues with this LanguageTool Plugin:

Error 1: "The local LanguageTool server is not available. Error: No es posible conectar con el servidor remoto."

• Root Cause: The local LanguageTool server is either not starting or cannot be connected. This could be due to:
  • Missing dependencies.
  • Incorrect configuration in the plugin.
  • A Java-related issue, as LanguageTool often relies on Java.

Error 2: "File [%LocalApplicationData%\StudioLanguageToolPlugin\jdk-11-jre\bin\java.exe] doesn't exist. Unable to start the LT server."

• Root Cause: The plugin attempts to locate the java.exe executable in a specific path but fails because the required JDK/JRE files are missing or misconfigured.

So I think your troubleshooting probably starts with reviewing the documentation for the plugin.  Instructions and current user guide are inside the app, once downloaded.  Please open Studio-> Project Settings-> Verification-> LanguageTool - Grammar and Spell Checker.