Ho do you handle errors? Im doing a UE and dont want to let the user save a record if the some validation fails, right now I use the N/error module, but this sned the user to the error page and throws him the error with all the info, but I think this is like to much for the user, I just want to let the user know there is an error but in a simpler way, without sending him to other page. What's the best way to handle this?