Server Error in '/' Application.

Unable to translate Unicode character \uD835 at index 189 to specified code page.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Text.EncoderFallbackException: Unable to translate Unicode character \uD835 at index 189 to specified code page.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[EncoderFallbackException: Unable to translate Unicode character \uD835 at index 189 to specified code page.]
   System.Text.EncoderExceptionFallbackBuffer.Fallback(Char charUnknown, Int32 index) +155
   System.Text.EncoderFallbackBuffer.InternalFallback(Char ch, Char*& chars) +275
   System.Text.UTF8Encoding.GetByteCount(Char* chars, Int32 count, EncoderNLS baseEncoder) +7907918
   System.Text.UTF8Encoding.GetByteCount(String chars) +43
   System.IO.BinaryWriter.Write(String value) +38
   System.Web.UI.ObjectStateFormatter.SerializeValue(SerializerBinaryWriter writer, Object value) +1284

[ArgumentException: Error serializing value 'oà trong không khí cận kề của ngày Tết Nguyên Đán, Sáng ngày 05.02.2024, trường Tiểu học Cẩm Đông tổ chức chương trình “𝐗𝐮𝐚̂𝐧 𝐘𝐞̂𝐮 𝐓𝐡𝐮̛𝐨̛𝐧𝐠 - 𝐓𝐞̂́𝐭 𝐒𝐮𝐦 𝐕𝐚̂̀𝐲” - 𝐌𝐮̛̀� ...' of type 'System.String.']
   System.Web.UI.ObjectStateFormatter.SerializeValue(SerializerBinaryWriter writer, Object value) +3395
   System.Web.UI.ObjectStateFormatter.Serialize(Stream outputStream, Object stateGraph) +110
   System.Web.UI.ObjectStateFormatter.Serialize(Object stateGraph) +57
   System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Serialize(Object state) +4
   System.Web.UI.Util.SerializeWithAssert(IStateFormatter formatter, Object stateGraph) +37
   System.Web.UI.HiddenFieldPageStatePersister.Save() +79
   System.Web.UI.Page.SavePageStateToPersistenceMedium(Object state) +105
   System.Web.UI.Page.SaveAllState() +236
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1099


Version Information: Microsoft .NET Framework Version:2.0.50727.9174; ASP.NET Version:2.0.50727.9175