System.Web.UI.ViewStateException: Viewstate inválido. 
	Client IP: 200.33.132.1
	Port: 64779
	Referer: http://riozinho.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 Edg/138.0.0.0
	ViewState: 6LOVf/8yg5w/TE60Q7dc7lxwSSVPBoxnazmQsm7/mNvpUqHSxVyzfY1tqBaZqdfk1P+XzCdvDslt2COndkzxKjpsU48o0o7lp9gWgd164gE4cKCVAOxEQViPr0Lk94g4bNj2NCsSvTQjwhlrbfeGxGpIHzvsV47/i+tjxE+tVshatiGZDCm4U2hFEHt2irPPlS/dmNDTTZ6M1QCChmYkq9R7UjAPfP5aTL2M2JroEMnJbLhVxsq1/v2LW3By/zLXkotNBFXPQNxzx7KtXG1DSc8Kycz3c/Z4E6bP9w2RFhK82W3YxUkDh3k51dQ7mvkuAvMiDDtYNmkcxfqWXYb8L31gRPSupG575EhqgchQ5hbAGwq0Nfuyd91JzkqwHr8nZF8nYCMofaC8KH4moMhBsnQcASavKK3Kg7dA3Chj2ZeATAOLS2wDUBEK3ssb9qLIS1svxYv7sRA1jB3T9//1iwZXONiSdF9r/QT0nzyhUlSJRUOgQGILvrDWL5rCyi5xn4yDZjwEXFeInp/HVHOz570NyPstMHHc0r0pEhkR1k7/NkTAyzivM+zV2DTvUAlM7W3I+N+2aThqaCBNaXIm6ZMr7vgKiQs8FjDwe/lOpEWuj/La1DSFEyjqF/BDK+OvwHpMIrshr1AUh4xoI/Fj2Q1iQGdcw2irSr5yLm4x/RH4Cqe0chAPlWcayRv/uE6Z4qu/YfRipx... ---> 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.