Google Apps Script, print and don’t render my css file?

I’ve un other problem, with my google apps scpript, now html, css, and js files are ok. But when I call a function

function func(){
  var message="";
  try {
   
    );
  }
  catch (error) {
     message="Errors "+ 
      "rnMessage: " + error.message
      + "rnFile: " + error.fileName
      + "rnLine: " + error.lineNumber;
  }
  finally {
    if(message=="") {
      message="Completed Successfully";
    }
    Logger.log(message);
  }
}

with

function onFailure(error){
    console.log("onFailure: " + error);
}

function onSuccess(resp) {
    console.log("onSuccess: "+ resp);
}

google.script.run.withFailureHandler(onFailure).withSuccessHandler(onSuccess).hotelWorkSync();

the console show this logs, and not my

Net state changed from IDLE to BUSY
Net state changed from BUSY to IDLE
null

I just try to follow much video but I can’t see the error.
I don’t understand where I’m wrong, please help me :’(.