CSV Advanced - connection error - "Could not load known_hosts"




I'm trying to setup a CSV Advanced connector to pull in data from a client.


The client has whitelisted the IP addresses per the documentation, provided a login ID/password, and provided the external URLs for the SFTP. I also have an exact file name I can choose the connector to look for.


I'm able to get the CSV Advanced connector to run, but keep getting this error: "Could not load known_hosts"


I've also tried the CSV-SFTP connector and got two different errors: "java.net.ConnectException: Connection refused (Connection refused)" and also "java.net.UnknownHostException: mpcftp.mgroupnet.com"


Anyone else have this error before? Was it due to the connector or due to the SFTP server?


Thank you!