Reload collector profile test shows the following error:

Agent admitted failure to sign using the key.
Permission denied(publickey,keyboard-interactive)
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at io.c(641) [sender=3.0.4]

[GRE_PO_SYNC]- Now running: FUNCTION_REPORT_LATEST_ERROR
Connot establish proper connectivity to paired reload server: