select espr_codigo_multi24 from enfs_parametr 
 System.Web.UI.ViewStateException: Viewstate inválido. 
	Client IP: 192.168.20.1
	Port: 51660
	Referer: https://nfse-bomretirodosul.multi24h.com.br/con_servicoprestadonfse.aspx
	Path: /con_servicoprestadonfse.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.Web.HttpException: O cliente se desconectou. ---> System.Web.UI.ViewStateException: Viewstate inválido. 
	Client IP: 192.168.20.1
	Port: 51660
	Referer: https://nfse-bomretirodosul.multi24h.com.br/con_servicoprestadonfse.aspx
	Path: /con_servicoprestadonfse.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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...
   --- Fim do rastreamento de pilha de exceções internas ---
   em System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   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.ClientScriptManager.EnsureEventValidationFieldLoaded()
   --- Fim do rastreamento de pilha de exceções internas --- Referência de objeto não definida para uma instância de um objeto.