This was due to having a mismatch in versions on the avamar server and the NDMP accelerator node. 
Hello, I'm having an issue setting up a secondary virtual NDMP node.  The error on the web gui i'm getting doesn't tell me much but i figured i would post it here to see if anyone knows anything about it.  Thanks in advance.   NDMP Accelerator Node V: 19.3.0.149 Connecting to EMC Isilon NAS.  Error: "propagating Accelerator related payloads (4 of 14) Failed"   Thanks   KB
NDMP Accelerator node Error