You want a image that on click in a image position, show more images, how a presentation?

Why you don't call a method and into this method you show the message with &JS<>, you was try this?

You can do it in three ways:

1 -

set ^mtemperro($ZNSPACE,..%PackageName()_"."_..%ClassName(),$horolog) = mensagem_" Erro CACHE: "_$zerror_" - "_$SYSTEM.OBJ.DisplayError()

2 -
Throw ##class(%Exception.General).%New("Falha ao sinalizar o lançamento do PDA como rastreado.",1,..%ClassName()_".upByRastreado","Informe ao suporte sobre o problema.").Log()

3 - Declare in your class an exception variable

#dim exception As% Exception.AbstractException

catch exception {
     do exception.Log()
}

Then just check the cache administration portal:

System Operation-> System Logs-> Application Error Log