Microsoft SQL server 2008 R2 - Backup failure

Backup of the Microsoft SQL server 2008 R2 fails with below error

2018-08-20 22:18:09 avsql Info <0000>: <=== sqlconnectimpl::get_smo_version

2018-08-20 22:18:09 avsql Info <0000>: <=== sqlconnectimpl::check_smo_version

2018-08-20 22:18:09 avsql Info <42540>: Start checking for SMO DLL version 13 for SQL server 2016...

2018-08-20 22:18:09 avsql Info <19487>: Start checking for SMO DLL version 12...

2018-08-20 22:18:09 avsql Info <19494>: Start checking for SMO DLL version 10...

2018-08-20 22:18:09 avsql Info <19484>: ===> sqlconnectimpl::is_SqlServ_2008

2018-08-20 22:18:09 avsql Info <19484>: ===> sqlconnectimpl::get_SqlServers_ver_reg

2018-08-20 22:18:09 avsql Info <0000>: <=== sqlconnectimpl::get_SqlServers_ver_reg

2018-08-20 22:18:09 avsql Info <0000>: <=== sqlconnectimpl::is_SqlServ_2008

2018-08-20 22:18:09 avsql Info <19495>: SMO DLL version 10 detected.

2018-08-20 22:18:10 avsql Error <15760>: No targets after expansion!

2018-08-20 22:18:10 avsql Error <15760>: No targets after expansion!

2018-08-20 22:18:10 avsql Info <7271>: Final summary generated subwork 0, cancelled/aborted 0, snapview 0, exitcode 536870919

2018-08-20 22:18:15 avsql Info <6451>: avsql returning with exitcode 536870919