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Details:
System.Web.UI.ViewStateException: Invalid viewstate.
Client IP: 190.114.129.78
Port: 11389
Referer:
Path: /contact
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36
ViewState: /wEPDwUKMTUyNTMxMjQ4Ng9kFgJmD2QWAgIDD2QWBGYPFgIeB1Zpc2libGVoZAIND2QWAgIHDxYCHwBoZGTjO85JaLG720EyWnTxJSf5Zrh68ibWZtX 4OSxfxt0tw== ---> System.FormatException: Invalid length for a Base-64 char array or string.
at System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength)
at System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength)
at System.Convert.FromBase64String(String s)
at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString, Purpose purpose)
at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter2 formatter, String serializedState, Purpose purpose)
at System.Web.UI.HiddenFieldPageStatePersister.Load()
--- End of inner exception stack trace ---