Error: ExecuteNonQuery requires an open and available Connection. The connection's current state is closed.(System.Data)

Dear all,

Can any one explain about this error,

2014-11-02 19:19:29.58    *** Error: Could not log history/error message.(Microsoft.SqlServer.Management.LogShipping) ***
2014-11-02 19:19:29.58    *** Error: ExecuteNonQuery requires an open and available Connection. The connection's current state is closed.(System.Data) ***
2014-11-02 19:19:29.58    Deleting log backup file. File: '\\Jdccb-mis\logshipping\JDCCBPROD_20141030134512.trn', Last Write Time (UTC): '10/30/2014 1:45:13 PM'
2014-11-02 19:19:29.60    *** Error: Could not log history/error message.(Microsoft.SqlServer.Management.LogShipping) *****

This errors comes on My Secondary server during log shipping and database goes to restore mode.

satish Kumar