Transaction (Process ID 51) was deadlocked on lock

Transaction (Process ID 51) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.

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.Data.SqlClient.SqlException: Transaction (Process ID 51) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.

Source Error:

Stack Trace:

[SqlException (0x80131904): Transaction (Process ID 51) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.]
   DataLayer.ADO_DAL.SQLDAL.ExecuteNonQuery(String query) +263
   DataLayer.ADO_DAL.ProjectDAL.UpdateSiteMIS(String ArticleID) +147
   AhlyUI.Pages.News1.Page_Load(Object sender, EventArgs e) +197
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785