Server Error in '/' Application.

The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

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: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

Source Error:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

  <%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

Stack Trace:


[FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters. ]
   System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength) +364
   System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength) +128
   System.Convert.FromBase64String(String s) +49
   AppLib.Decrypt(String cipherString) +63
   ASP.shastra_bhandar_pub_books_aspx.__DataBinding__control27(Object sender, EventArgs e) +439
   System.Web.UI.Control.OnDataBinding(EventArgs e) +98
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +174
   System.Web.UI.Control.DataBindChildren() +246
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +191
   System.Web.UI.Control.DataBindChildren() +246
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +191
   System.Web.UI.Control.DataBindChildren() +246
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +191
   System.Web.UI.WebControls.Repeater.CreateItem(Int32 itemIndex, ListItemType itemType, Boolean dataBind, Object dataItem) +172
   System.Web.UI.WebControls.Repeater.AddDataItemsIntoItemsArray(IEnumerable dataSource, Boolean useDataSource) +279
   System.Web.UI.WebControls.Repeater.PostGetDataAction(IEnumerable dataSource) +104
   System.Web.UI.WebControls.Repeater.OnDataBinding(EventArgs e) +80
   shastra_bhandar_pub_books.rptbooks_Publications_ItemDataBound(Object sender, RepeaterItemEventArgs e) +508
   System.Web.UI.WebControls.Repeater.OnItemDataBound(RepeaterItemEventArgs e) +137
   System.Web.UI.WebControls.Repeater.CreateItem(Int32 itemIndex, ListItemType itemType, Boolean dataBind, Object dataItem) +191
   System.Web.UI.WebControls.Repeater.AddDataItemsIntoItemsArray(IEnumerable dataSource, Boolean useDataSource) +279
   System.Web.UI.WebControls.Repeater.PostGetDataAction(IEnumerable dataSource) +104
   System.Web.UI.WebControls.Repeater.OnDataBinding(EventArgs e) +80
   shastra_bhandar_pub_books.Bindbookspublications(String Pagename, Int32 lang_id) +543
   shastra_bhandar_pub_books.BindPubBooks(String Pagename, Int32 lang_id) +352
   shastra_bhandar_pub_books.Page_Load(Object sender, EventArgs e) +462
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3429.0