'Error loading dynamic library: The specified procedure could not be found.' is clear indication that the library has some functions missing.
Upgrade the netvault client to 10.0.1 so that it will have the latest version of RDA libraries
Contact the hardware team to get the version of RDA library for client which is compatible with DR firmware.
When calling please make sure to have your service tag number available.
Note:- You will also need to make sure your client OS is also supported for backups .
Customer care: 1-800-456-3355