   {
     // setup
     // stop thread
-    t2.disable();
+    if(t2.isEnabled() == true)
+    {
+      t2.disable();
+    }
+    else
+    {
+      Serial.println("is disabled");
+    }
 
     // end function and go an layer back
     LCDML.FUNC_goBackToMenu(1);      // leave this function

  {
    // you can here reset some global vars or do nothing
  }
}

  {
    // setup
    // start thread 
    if(t2.isEnabled() == false)
    {
      t2.enable();
    }
    else
    {
      Serial.println("is enabled");
    }
    

    // end function and go an layer back
    LCDML.FUNC_goBackToMenu(1);      // leave this function
