Is it still possible to install the Replicate add-on for a RN2100?

Hey guys, thank you all for the heads up, I appreciate it. I now see that Download link.

Ok, so I've got everything all set up again, but still refusing to connect. I have so many issues with these ReadyNas 2100's these days. For example, here is a shot of the logs from a replicate from 1 NAS to another NAS:

Log:

[2016-02-22 22:51:52] [Info] Replicate version: 1.2.0 build R1
[2016-02-22 22:51:52] [Info] Starting backup job "CHI-studio233 to CHI-studio234 Nightly"
[2016-02-22 22:51:52] [Info] Locking target folder: /c/CHI-studioBU/CHI-studio233 to CHI-studio234 Nightly
[2016-02-22 22:51:53] [Info] Resume folder is "/c/CHI-studioBU/CHI-studio233 to CHI-studio234 Nightly/2016-02-22 22-07 (failed)"
[2016-02-22 23:00:28] [Info] p2p connect to chi0nas01 in 919206 network
[2016-02-22 23:00:50] [Info] p2p connect to chi0nas01 in 919206 network
[2016-02-22 23:01:01] [Error] Unable to connect to chi0nas01
[2016-02-22 23:01:01] [Error] Connect error code: -51
[2016-02-22 23:01:01] [Error] Please check source device is online and Replicate service is running
[2016-02-22 23:01:01] [Info] Rotate backups (3)
[2016-02-22 23:01:02] [Info] Rotation marker is "2016-02-21 21-00 (failed)"
[2016-02-22 23:06:45] [Info] Unlock target folder: /c/CHI-studioBU/CHI-studio233 to CHI-studio234 Nightly
[2016-02-22 23:06:45] [Info] Job finished

This just stopped working out of nowhere, there were no issues for months. I have removed Replicate, added it back, tried to 'resume from' and 'resume' but it insists on failing. I can still see the devices online, nothing ever changed, I just woke up one morning to these backup failures.

Any thoughts on error code -51?