Attempting to Fetch, Pull or Push to assembla.com repo fails continuously asking if I will accept server's host key. Output below.

Note that changing to HTTPS protocol works, and I am continuing to use the produce with this transport method.

Output:--------

git -c diff.mnemonicprefix=false -c core.quotepath=false fetch origin
The server's host key is not cached in the registry. You
have no guarantee that the server is the computer you
think it is.

The server's rsa2 key fingerprint is:
ssh-rsa 2048 31:06:3b:0d:cd:23:1a:41:dc:f2:c5:7d:9c:24:07:e6
Connection abandoned.

fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.

The server's host key is not cached in the registry. You
have no guarantee that the server is the computer you
think it is.
The server's rsa2 key fingerprint is:

ssh-rsa 2048 31:06:3b:0d:cd:23:1a:41:dc:f2:c5:7d:9c:24:07:e6
Connection abandoned.

fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.

Completed with errors, see above.