Server Error in '/' Application.

Invalid length for a Base-64 char array or string.

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.FormatException: Invalid length for a Base-64 char array or string.

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:


[FormatException: Invalid length for a Base-64 char array or string.]
   System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength) +14218861
   System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength) +131
   System.Convert.FromBase64String(String s) +50
   AABUResp.Webparts.ProfessorDetails.ProfessorDetailsUserControl.Decrypt(String cipherText) +145
   AABUResp.Webparts.ProfessorDetails.ProfessorDetailsUserControl.GetProfessors(String Sub, String lstName) +287
   AABUResp.Webparts.ProfessorDetails.ProfessorDetailsUserControl.Page_Load(Object sender, EventArgs e) +144
   System.Web.UI.Control.OnLoad(EventArgs e) +86
   System.Web.UI.Control.LoadRecursive() +129
   System.Web.UI.Control.AddedControl(Control control, Int32 index) +642
   AABUResp.Webparts.ProfessorDetails.ProfessorDetails.CreateChildControls() +358
   System.Web.UI.Control.EnsureChildControls() +130
   System.Web.UI.Control.PreRenderRecursiveInternal() +66
   System.Web.UI.Control.PreRenderRecursiveInternal() +276
   System.Web.UI.Control.PreRenderRecursiveInternal() +276
   System.Web.UI.Control.PreRenderRecursiveInternal() +276
   System.Web.UI.Control.PreRenderRecursiveInternal() +276
   System.Web.UI.Control.PreRenderRecursiveInternal() +276
   System.Web.UI.Control.PreRenderRecursiveInternal() +276
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6881


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4110.0