SQL backup problem

Hi experts

SQL 2012 on server WIN 2008. recently added SQL instance. when i tried to run of this it fails give me error.

16> CODBCaccess::LogODBCerr: DBMS MSG - ODBC return code <-1>, SQL State <08004>, SQL Message <916><[Microsoft][ODBC SQL Server Driver][SQL Server]The server principal "NT AUTHORITY\SYSTEM" is not able to access the database "model" under the current security context.>.

i m getting same error for all databases in SQL instance. dbclient logs attached