System.Web.UI.ViewStateException: Viewstate inválido. 
	Client IP: 216.238.122.114
	Port: 52085
	Referer: http://marata.nfse-tecnos.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.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.ClientScriptManager.EnsureEventValidationFieldLoaded()
   --- Fim do rastreamento de pilha de exceções internas --- Referência de objeto não definida para uma instância de um objeto.