function doPost(e) {   
  var row = [     
    e.parameter.first_name,     
    e.parameter.last_name,     
    e.parameter.email_name,     
    e.parameter.message_name,
    var sheet = SpreadsheetApp.openById('1AxAIJNK7NkBOY2QPUQe0jRew3hZavUJdMHUXPR5niz4');   
    sheet.appendRow(row);   
    return HtmlService.createHtmlOutput(<script>window.location.replace("https://astralane.io/");</script>); 
}

error:Syntax error: SyntaxError: Unexpected token ‘<‘ line: 13 file: astralane app script.gs

i cant save the script because of the error