SQL Backup failure

Hi,

Suddenly one of our SQL backup client failed with the following error message:

2019-01-10 20:00:25 avsql Info <42540>: Start checking for SMO DLL version 13 for SQL server 2016...
2019-01-10 20:00:25 avsql Info <19487>: Start checking for SMO DLL version 12...
2019-01-10 20:00:25 avsql Info <19484>: ===> sqlconnectimpl::is_SqlServ_2014
2019-01-10 20:00:25 avsql Info <19484>: ===> sqlconnectimpl::get_SqlServers_ver_reg
2019-01-10 20:00:25 avsql Info <0000>: <=== sqlconnectimpl::get_SqlServers_ver_reg
2019-01-10 20:00:25 avsql Info <0000>: <=== sqlconnectimpl::is_SqlServ_2014
2019-01-10 20:00:25 avsql Info <19488>: SMO DLL version 12 detected.
2019-01-10 20:00:25 avsql Info <42545>: SMO managed DLL loaded for SQL server 2014 (SMO DLL version 12).
2019-01-10 20:00:26 avsql Error <15760>: No targets after expansion!
2019-01-10 20:00:26 avsql Error <15760>: No targets after expansion!
2019-01-10 20:00:26 avsql Info <42977>: Final summary generated subwork 0, cancelled/aborted 0, promoted to full 0, snapview 0, exitcode 536870919
2019-01-10 20:00:31 avsql Info <6451>: avsql returning with exitcode 536870919

I've checked with our DBA, there's no changes done on the DB side. I also have uninstall and re-install avamar client and SQL plugin on this machine too. Anyone seen this error before?