select espr_codigo_multi24 from enfs_parametr 
 System.Web.UI.ViewStateException: Viewstate inválido. 
	Client IP: 177.53.50.242
	Port: 22280
	Referer: http://novahartz.nfse-tecnos.com.br/con_consultaPrestador.aspx
	Path: /con_consultaPrestador.aspx
	User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36
	ViewState: 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... ---> System.FormatException: Comprimento inválido para uma matriz ou uma cadeia de caracteres de Base 64.
   em System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength)
   em System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength)
   em System.Convert.FromBase64String(String s)
   em System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
   em System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter2.Deserialize(String serializedState, Purpose purpose)
   em System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
   em System.Web.UI.HiddenFieldPageStatePersister.Load()
   --- Fim do rastreamento de pilha de exceções internas --- Referência de objeto não definida para uma instância de um objeto.