select espr_codigo_multi24 from enfs_parametr 
 System.Web.UI.ViewStateException: Viewstate inválido. 
	Client IP: 187.0.13.235
	Port: 51738
	Referer: http://novabassano.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 Edg/138.0.0.0
	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.